An apparatus, a system and a method may use a diamond-impregnated wire loop to cut an underwater pipeline. The apparatus may have a frame, a carriage attached to the frame and/or pulleys connected to the carriage. The diamond-impregnated wire loop may be connected to the pulleys. The carriage may move relative to the frame to direct the diamond-impregnated wire loop in a forward direction relative to the frame and/or through the pipeline.

The present invention relates to a cutting tool, in particular in the form of a razor blade, a scalpel, a knife, a machine knife, scissors etc., which has a synthetic diamond layer with a cutting edge. The diamond layer thereby consists of fine-crystalline diamond.

A method of dressing a wheel using a polycrystalline CVD synthetic diamond dresser, the method comprising: rotating the wheel; and contacting a working surface of the wheel with a working surface of the polycrystalline CVD synthetic diamond dresser, wherein the polycrystalline CVD synthetic diamond dresser is oriented such that a leading edge of the working surface of the polycrystalline CVD synthetic diamond dresser is formed of larger grains than a trailing edge of the working surface of the polycrystalline CVD synthetic diamond dresser.

An apparatus, a system and a method may use a diamond-impregnated wire loop to cut an underwater pipeline. The apparatus may have a frame, a carriage attached to the frame and/or pulleys connected to the carriage. The diamond-impregnated wire loop may be connected to the pulleys. The carriage may move relative to the frame to direct the diamond-impregnated wire loop in a forward direction relative to the frame and/or through the pipeline.

Disclosed is an aluminum-diamond composite having both high thermal conductivity and thermal expansion coefficient close to those of semiconductor elements, which is improved in platability in the surface and surface roughness so that the composite becomes suitable for use as a heat sink of a semiconductor element of the like. Specifically disclosed is a plate-like aluminum-diamond composite containing diamond particles and a metal mainly composed of aluminum. The aluminum-diamond composite is composed of a composite part and surface layers formed on both sides of the composite part, and the surface layers are composed of a material containing a metal mainly composed of aluminum. The diamond particle content is 40-70% by volume of the entire aluminum-diamond composite.

In certain implementations, a method of manufacturing electrically conductive nanodiamond particles involves providing at least one type of carbon-containing explosive material and at least one type of non-explosive material; wherein the non-explosive material contains at least one or more than one element or species other than nitrogen that serve as a nanodiamond dopant; mixing the carbon containing explosive material with the non-explosive material; detonating the mixture under conditions of negative oxygen balance in the presence of a cooling medium; purifying the product of detonation from incombustible impurities; and carrying out additional processing for activation or enhancement of electrical conductance. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

The present invention describes a microfabricated or nanofabricated structured diamond abrasive with a high surface density array of geometrical protrusions of pyramidal, truncated pyramidal or other shape, of designed shapes, sizes and placements, which provides for improved conditioning of CMP polishing pads, or other abrasive roles. Three methods of fabricating the structured diamond abrasive are described: molding of diamond into an array of grooves of various shapes and sizes etched into Si or another substrate material, with subsequent transferal onto another substrate and removal of the Si; etching of an array of geometrical protrusions into a thick diamond layer, and depositing a thick diamond layer over a substrate pre-patterned (or pre-structured) with an array of geometrical protrusions of designed sizes, shapes and placements on the surface.

In an embodiment, a polycrystalline diamond compact includes a substrate and a preformed polycrystalline diamond table having an upper surface, an interfacial surface, and at least one side surface extending therebetween. The interfacial surface of the polycrystalline diamond table is bonded to the substrate. The polycrystalline diamond table includes bonded diamond grains defining interstitial regions. The polycrystalline diamond table includes a first region extending inwardly from at least a portion of the upper surface and at least a portion of the at least one side surface. The first region spaced from the interfacial surface. The polycrystalline diamond table includes at least a second region extending inwardly from the interfacial surface to the upper surface. The first region includes at least a first infiltrant disposed interstitially between the bonded diamond grains thereof. The second region includes at least a second infiltrant disposed interstitially between the bonded diamond grains thereof.

A polycrystalline diamond (PCD) with diamond grains includes a first zone of the diamond grains and a second zone of the diamond grains. The first zone forms a working surface and a first catalyzing material is disposed within voids of the diamond grains in the first zone. A second catalyzing material is bonded to the diamond grains disposed in the second zone. The first catalyzing material in the first zone is connected to the diamond grains disposed in the first zone less intimately than the second catalyzing material is bonded to the diamond grains in the second zone.

Embodiments of the invention relate to polycrystalline diamond (“PCD”) fabricated by sintering a mixture including diamond particles and a selected amount of graphite particles, polycrystalline diamond compacts (“PDCs”) having a PCD table comprising such PCD, and methods of fabricating such PCD and PDCs. In an embodiment, a method includes providing a mixture including graphite particles present in an amount of about 0.1 weight percent (“wt %”) to about 20 wt % and diamond particles. The method further includes subjecting the mixture to a high-pressure/high-temperature process sufficient to form PCD.

A layer of matrix powder is deposited within a mold opening. A layer of super-abrasive particles is then deposited over the matrix powder layer. The super-abrasive particles have a non-random distribution, such as being positioned at locations set by a regular and repeating distribution pattern. A layer of matrix powder is then deposited over the super-abrasive particles. The particle and matrix powder layer deposition process steps are repeated to produce a cell having alternating layers of matrix powder and non-randomly distributed super-abrasive particles. The cell is then fused, for example using an infiltration, hot isostatic pressing or sintering process, to produce an impregnated structure. A working surface of the impregnated structure that is oriented non-parallel (and, in particular, perpendicular) to the super-abrasive particle layers is used as an abrading surface for a tool.

Embodiments of the invention relate to methods of fabricating a polycrystalline diamond compacts and applications for such polycrystalline diamond compacts. In an embodiment, a method of fabricating a polycrystalline diamond body includes mechanically milling non-diamond carbon and a sintering aid material for a time and aggressiveness sufficient to form a plurality of carbon-saturated sintering aid particles and sintering a plurality of diamond particles in the presence of the plurality of carbon-saturated sintering aid particles to form the polycrystalline diamond body.

Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) comprising a polycrystalline diamond (“PCD”) table including a thermally-stable region having at least one low-carbon-solubility material disposed interstitially between bonded diamond grains thereof, and methods of fabricating such PDCs. In an embodiment, a PDC includes a substrate, and a PCD table bonded to the substrate. The PCD table includes a plurality of diamond grains exhibiting diamond-to-diamond bonding therebetween and defining a plurality of interstitial regions. The PCD table further includes at least one low-carbon-solubility material disposed in at least a portion of the plurality of interstitial regions. The at least one low-carbon-solubility material exhibits a melting temperature of about 1300° C. or less and a bulk modulus at 20° C. of less than about 150 GPa.

Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) and methods of fabricating such PDCs. In an embodiment, a PDC includes a substrate and a preformed polycrystalline diamond table including an interfacial surface bonded to the substrate and an opposing working surface. The preformed polycrystalline diamond table includes a proximal region extending from the interfacial surface to an intermediate location within the preformed polycrystalline diamond table that includes a metallic infiltrant infiltrated from the substrate, and a distal region extending from the working surface to the intermediate location that is substantially free of the metallic infiltrant. A boundary exists between the proximal and distal regions that has a nonplanar irregular profile characteristic of the metallic infiltrant having been infiltrated into the preformed polycrystalline diamond table.

Methods for preparing a silicon bonded PCD material involving a one step, double sweep process and drilling cutters made by such processes are disclosed. The PCD material includes thermally stable phases in the interstitial spaces between the sintered diamond grains. The method sweeps a diamond powder with a binder to form sintered PCD, reacts said molten binder with a temporary barrier separating said binder and said diamond from a silicon (Si) source, and sweeps said sintered PCD with said Si source to form SiC bonded PCD.

A magnetically enhanced low temperature high density plasma chemical vapor deposition (LT-HDP-CVD) source has a hollow cathode target and an anode, which form a gap. A cathode target magnet assembly forms magnetic field lines substantially perpendicular to the cathode surface. A gap magnet assembly forms a magnetic field in the gap that is coupled with the cathode target magnetic field. The magnetic field lines cross the pole piece electrode positioned in the gap. The pole piece is isolated from ground and can be connected to a voltage power supply. The pole piece can have negative, positive, floating, or RF electrical potentials. By controlling the duration, value, and sign of the electric potential on the pole piece, plasma ionization can be controlled. Feed gas flows through the gap between the hollow cathode and anode. The cathode can be connected to a pulse power or RF power supply, or cathode can be connected to both power supplies. The cathode target and substrate can be inductively grounded.

A magnetically enhanced HDP-CVD plasma source includes a hollow cathode target and an anode. The anode and cathode form a gap. A cathode target magnet assembly forms magnetic field lines that are substantially perpendicular to a cathode target surface. The gap magnet assembly forms a cusp magnetic field in the gap that is coupled with the cathode target magnetic field. The magnetic field lines cross a pole piece electrode positioned in the gap. This pole piece is isolated from ground and can be connected with a voltage power supply. The pole piece can have a negative, positive, or floating electric potential. The plasma source can be configured to generate volume discharge. The gap size prohibits generation of plasma discharge in the gap. By controlling the duration, value and a sign of the electric potential on the pole piece, the plasma ionization can be controlled. The magnetically enhanced HDP-CVD source can also be used for chemically enhanced ionized physical vapor deposition (CE-IPVD). Gas flows through the gap between hollow cathode and anode. The cathode target is inductively grounded, and the substrate is periodically inductively grounded.

News you don't want to miss for April 28:

1. The upcoming school year could open early, maybe in July, Gov. Gavin Newsom said on Tuesday, the East Bay Times reports.…

Thousands of people cheered Queen Elizabeth II during a trip to Stamford and Burghley House earlier this month

India, the world’s largest diamond polishing hub that employs over one million people, is likely to see a staggering 50% job loss. Diamond merchants are struggling to manage their inventories or pay salaries to their craftsmen. Knock-on effects are being felt by one million more workers employed in the gems and jewellery industry.

Assuming the pandemic starts subsiding by June and trade channels normalise over the next quarter, CRISIL expects a revival in demand to be pushed into the second half of the fiscal.

India’s gross import of rough diamonds had declined by 13.43% to $12.39 billion between April 2019 and February 2020 from a year earlier.

Diamond trade at Surat has come to a halt because of the lockdown. Many workers have also left.

India, the world’s largest diamond polishing hub that employs over one million people, is likely to see a staggering 50% job loss. Diamond merchants are struggling to manage their inventories or pay salaries to their craftsmen. Knock-on effects are being felt by one million more workers employed in the gems and jewellery industry.

A GLASWEGIAN who once reached the final of hit TV show Stars in their Eyes has been delighting lockdown audiences by putting on live tribute performances of two country music icons.

Terri Windling (03/2020), "Once upon a time in Paris...": "As the vogue for fairy stories evolved in the 1670s and '80s, Madame d'Aulnoy emerged as one of the most popular raconteurs in Paris ... she soon formed a glittering group around her of nonconformist women and men, as well as establishing a highly successful and profitable literary career ... So how, we might ask, did Perrault become known as the only French fairy tale author of note?" Elizabeth Winter (12/2016), "Feminist Fairies and Hidden Agendas": "the term contes de fées ... was coined by ... d'Aulnoy in 1697, when she published her first collection of tales." Volker Schröder (2018-2019): this collection "is often described as 'lost' or 'untraceable'" and its "sequel has become just as scarce"; but d'Aulnoy's tales are available online, and mixed reviews such as those of the Brothers Grimm may call to mind her childhood marginalia: "if you have my book and ... don't appreciate what's inside, I wish you ringworm, scabies ... and a broken neck."

A couple of articles that are free to read online break down specifics of d'Aulnoy's stories. In "A Transformed Woman," part of her occasional column On Fairy Tales at Tor.com, Mari Ness discusses Madame d'Aulnoy's "The White Cat," a story that has also been recommended previously on Metafilter. And in "Early Modern French Feminine Narratives: Subverting Gender Roles and Sexual Identity in Mme d'Aulnoy's Beauty or the Fortunate Knight (1698)," [PDF] Harold Neeman discusses the story also known as "Belle-Belle" (likewise recommended previously on Metafilter).

More general thematic analyses of work by d'Aulnoy and her peers include Bronwyn Reddan's "Scripting Love in Fairy Tales by Seventeenth-century French Women Writers" [PDF] and "Thinking Through Things: Magical Objects, Power, and Agency in French Fairy Tales" [PDF] (the latter available temporarily from Project MUSE) and also Meghan Kort's "Imagining Girlhood in Seventeenth-Century Female-Authored Fairytales."

Works by several other authors writing in French from the 17th C. to the 19th C. illuminate d'Aulnoy's connections and her legacy (often via the collection Four and Twenty Fairy Tales, which is also at Gutenberg):

• Marie-Jeanne L'Héritier (Wikipedia): "The Discreet Princess; or The Adventures of Finetta," as discussed in Mari Ness's "Enchantment and Distrust." L'Héritier has also been credited as the co-author of the queer and/or trans (avant la lettre) romantic fairy tale, "Histoire de la Marquise-Marquis de Banneville," along with Perrault and L'Abbé de Choisy ("Une Collaboration Inattendue au XVIIe Siècle").
• Catherine Bernard (Wikipedia): Inès de Cordüe, which contains the story "Riquet à la houppe," which would later be retold by Perrault in a version available in English.
• Henriette-Julie de Murat (Wikipedia): "Perfect Love"; "Anguillette"; "Young and Handsome"; "The Palace of Revenge"; "The Prince of Leaves"; and "The Fortunate Punishment." Notes. See also Mari Ness's "Imprisonment and the Fairy Tales of Henriette Julie de Murat."
• Catherine Durand (Wikipedia.fr): Les petits soupers de l'esté, ou avantures galantes, avec l'origine des fées, which may only be available in English from Black Coat Press--one of many translations there by science fiction author Brian Stableford.
• Charlotte-Rose de Caumont de La Force (Wikipedia): "Fairer Than a Fairy"; and "The Good Woman." Notes.
• Gabrielle-Suzanne de Villeneuve (Wikipedia): "The Story of Beauty and the Beast." Notes. But see also Andrea H. Everett's thesis, Villeneuve's "La belle et la bête" (1740): An Annotated Edition in English. Incidentally, both translations include the surprising second half of the story in which Beauty and the Beast turn out to be cousins.
• Marguerite de Lubert (Wikipedia): "The Princess Camion"; "Princess Lionette and Prince Coquerico." Notes.
• Jeanne-Marie Leprince de Beaumont (Wikipedia): "The Prince Désir and the Princess Mignone"; "Prince Chéri"; "The Widow and Her Two Daughters"; "Prince Fatal and Prince Fortuné." Notes.
• Sophie Rostopchine, Countess of Ségur (Wikipedia): "Blondine, Bonne-Biche, and Beau-Minon"; "Good Little Henry"; "History of Princess Rosette"; "The Little Gray Mouse"; and "Ourson." See also Claire-Lise Malarte-Feldman's "La Comtesse de Ségur, a Witness of Her Time" [PDF] ("the adult reader today will find more than the dark sadomasochist that some critics have found"), available temporarily from Project MUSE.
• George Sand (Wikipedia): Légendes rustiques, available at Gutenberg in French, purports to tell local legends in a realist mode, but it also references fairies, ogres, and the fairy tale tradition in France. The version at Gallica features amazing illustrations by her son, e.g. "Les Demoiselles" or "Les Lavandières ou Laveuses de Nuit."

It's Mary's song today for our Alone Together series. She writes: "My son was helping me in the garden and announced 'There's a lobster in the grate!' A yabby had been washed out of one Adelaide's many creeks and had managed to climb up our drain and through narrow bars where it cowered under a leaf..."

Offers more than a whistle-stop tour of the hits.

I may be still flushed with enthusiasm after seeing Neil Diamond at Perth Oval last night but I saw what, in the cold light of day, still feels like the best concert I've ever been to.

Whisky the kelpie and Diamond the sheep are making a splash at Karoonda in South Australia's Mallee region, after being painted on the town's silos.

Trading at around $2,500 per kilogram, more growers are entering the truffle industry as demand for the unique fungi remains high.

Diamonds so rare they never reach the open market are unveiled by Rio Tinto in a historic preview at the Argyle mine in Western Australia's far north.

Survivor is a word thrown around fairly lightly, but in the case of German migrant Frauke Bolten-Boshammer, you can't help but feel she's earned the title 10 times over.

The ACT's WorkSafe commissioner says a fine of $180,000, delivered to a developer responsible for safety breaches that saw a 16-year-old student break his neck on a construction site, is inadequate.

(United States Federal Circuit) - Affirmed the decision of the U.S. Patent and Trademark Office’s decision cancelling registration of plaintiff’s trademark for a green tea product due to the likelihood of confusion with defendant’s registered mark.

(United States Federal Circuit) - Affirmed the decision of the U.S. Patent and Trademark Office’s decision cancelling registration of plaintiff’s trademark for a green tea product due to the likelihood of confusion with defendant’s registered mark.

(United States Federal Circuit) - Affirmed the decision of the U.S. Patent and Trademark Office’s decision cancelling registration of plaintiff’s trademark for a green tea product due to the likelihood of confusion with defendant’s registered mark.

(California Court of Appeal) - Dismissed appeal. Plaintiff and Defendant agreed to an expedited jury trial process pursuant to Code of Civil Procedure section 630.01. As part of the expedited process, the parties agree to waive the right to appeal. Plaintiff sought to appeal the amount of the damages award, but by executing the consent to expedited jury trial she voluntarily waived her right to appeal.

(United States Federal Circuit) - Affirming the Court of International Trade's decision affirming a Department of Commerce ruling in the administrative review of an earlier anti-dumping order, the court held that no error occurred in the determination that a Chinese saw blade manufacturer was seeking to sell their products at less than fair market value in the United States.

(California Court of Appeal) - Held that an electrical contractor could not proceed with its lawsuit challenging a state licensing board's disciplinary decision, because the contractor was required to exhaust its administrative remedies before filing suit. Granted the licensing board's petition for a writ of mandate.

(California Court of Appeal) - Dismissed appeal. Plaintiff and Defendant agreed to an expedited jury trial process pursuant to Code of Civil Procedure section 630.01. As part of the expedited process, the parties agree to waive the right to appeal. Plaintiff sought to appeal the amount of the damages award, but by executing the consent to expedited jury trial she voluntarily waived her right to appeal.

At The Movies, the band featuring vocalist Björn “Speed” Strid (Soilwork, The Night Flight Orchestra), guitarist Chris Laney (Randy Piper’s...

The post AT THE MOVIES (SOILWORK, KING DIAMOND) Covers "(I've Had) The Time Of My Life" appeared first on Metal Injection.

(United States Federal Circuit) - Affirming the Court of International Trade's decision affirming a Department of Commerce ruling in the administrative review of an earlier anti-dumping order, the court held that no error occurred in the determination that a Chinese saw blade manufacturer was seeking to sell their products at less than fair market value in the United States.

At the core of quantum computing is the qubit. The best ones have a few defining traits, and scientists are looking to everything from lasers to Russian diamonds to help refine the best qubits for the next generation of quantum computing.

Scientists studying diamonds from deep within Earth’s mantle found evidence of a reservoir of rocks and gas that may be nearly as old as the planet itself.

Kole Calhoun hasn't thought much about the Angels this spring, but the Arizona Diamonbacks outfielder says he had a great time with the organization.

Connor Justus' single lifted the Angels into a tie with the Diamondbacks in Tempe, Ariz; Julio Teheran and Patrick Sandoval each worked three innings.

A.J. Pollock hit his first home run of the spring but the Dodgers dug themselves in a hole early to fall to the Arizona Diamondbacks 7-3.