Abstract: A refractory metal plate is provided. The plate has a center, a thickness, an edge, a top surface and a bottom surface, and has a crystallographic texture (as characterized by through thickness gradient, banding severity; and variation across the plate, for each of the texture components 100//ND and 111//ND, which is substantially uniform throughout the plate.
Abstract: A tantalum or tantalum alloy which contains pure or substantially pure tantalum and at least one metal element selected from the group consisting of Ru, Rh, Pd, Os, Jr, Pt, Mo, W and Re to form a tantalum alloy that is resistant to aqueous corrosion. The invention also relates to the process of preparing the tantalum alloy.
Abstract: A niobium or niobium alloy which contains pure or substantially pure niobium and at least one metal element selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt, Mo, W and Re to form a niobium alloy that is resistant to aqueous corrosion. The invention also relates to the process of preparing the niobium alloy.
Abstract: In various embodiments, an electrode has a shaft extending from an electrode head and a cooling passage extending from an open end disposed at an attachment end of the shaft to a closed end disposed within the electrode head. The electrode head has an approximately teardrop shape with a smoothly rounded outer contour.
Abstract: In various embodiments, a precursor powder is pressed into an intermediate volume and chemically reduced, via sintering, to form a metallic shaped article.
Abstract: In various embodiments, etchants featuring (i) mixtures of hydrochloric acid, methanesulfonic acid, and nitric acid, or (ii) mixtures of phosphoric acid, methanesulfonic acid, and nitric acid, are utilized to etch metallic bilayers while minimizing resulting etch discontinuities between the layers of the bilayer.
Type:
Grant
Filed:
March 3, 2015
Date of Patent:
September 27, 2016
Assignees:
H.C. Starck, Inc., Daetec, LLC
Inventors:
Patrick Hogan, John Moore, Alex Brewer, Jared Pettit
Abstract: In various embodiments, joined sputtering targets are formed at least in part by spray deposition of the sputtering material and/or welding.
Type:
Grant
Filed:
September 27, 2012
Date of Patent:
August 9, 2016
Assignee:
H.C. Starck, Inc.
Inventors:
Francois-Charles Dary, Mark Gaydos, William Loewenthal, Steven A. Miller, Gary Rozak, Scott Jeffrey Volchko, Stefan Zimmermann, Michael Thomas Stawovy
Abstract: A sputtering target that includes at least two consolidated blocks, each block including an alloy including molybdenum in an amount greater than about 30 percent by weight and at least one additional alloying ingredient; and a joint between the at least two consolidated blocks, the joint being free of any microstructure due to an added bonding agent (e.g., powder, foil or otherwise), and being essentially free of any visible joint line the target that is greater than about 200 ?m width (e.g., less than about 50 ?m width). A process for making the target includes hot isostatically pressing, below a temperature of 1080° C., consolidated perform blocks that may be surface prepared (e.g., roughened to a predetermined roughness value) prior to pressing.
Abstract: A sputtering target that includes at least two consolidated blocks, each block including an alloy including a first metal (e.g., a refractory metal such as molybdenum in an amount greater than about 30 percent by weight) and at least one additional alloying ingredient; and a joint between the at least two consolidated blocks, the joint being prepared free of any microstructure derived from a diffusion bond of an added loose powder. A process for making the target includes hot isostatically pressing (e.g., below a temperature of 1080° C.), consolidated preform blocks that, prior to pressing, have interposed between the consolidated powder metal blocks at least one continuous solid interface portion. The at least one continuous solid interface portion may include a cold spray body, which may be a mass of cold spray deposited powders on a surface a block, a sintered preform, a compacted powder body (e.g., a tile), or any combination thereof.
Type:
Grant
Filed:
March 11, 2013
Date of Patent:
May 10, 2016
Assignee:
H.C. STARCK INC.
Inventors:
Gary Alan Rozak, Mark E Gaydos, Christopher Michaluk
Abstract: In various embodiments, tubular sputtering targets comprising molybdenum are provided and sputtered to produce thin films comprising molybdenum. The sputtering targets may be formed by forming a tubular billet having an inner diameter IDI and an outer diameter ODI, the formation comprising pressing molybdenum powder in a mold and sintering the pressed molybdenum powder, working the tubular billet to form a worked billet having an outer diameter ODf smaller than ODI, and heat treating the worked billet. The sputtering targets may have a substantially uniform texture of (a) a 110 orientation parallel to a longitudinal direction and (b) a 111 orientation parallel to a radial direction.
Type:
Grant
Filed:
January 29, 2015
Date of Patent:
April 12, 2016
Assignee:
H.C. Starck, Inc.
Inventors:
Brad Lemon, Joseph Hirt, Timothy Welling, James G. Daily, III, David Meendering, Gary Rozak, Jerome O'Grady, Prabhat Kumar, Steven A. Miller, Rong-chein Richard Wu, David G. Schwartz
Abstract: In various embodiments, electronic devices such as thin-film transistors incorporate electrodes featuring a conductor layer and, disposed below the conductor layer, a barrier layer comprising an alloy of Cu and one or more refractory metal elements selected from the group consisting of Ta, Nb, Mo, W, Zr, Hf, Re, Os, Ru, Rh, Ti, V, Cr, and Ni.
Type:
Grant
Filed:
June 5, 2014
Date of Patent:
March 29, 2016
Assignee:
H.C. Starck Inc.
Inventors:
Shuwei Sun, Francois-Charles Dary, Marc Abouaf, Patrick Hogan, Qi Zhang
Abstract: In various embodiments, metallic products are formed by alloying niobium with at least one of yttrium, aluminum, hafnium, titanium, zirconium, thorium, lanthanum, or cerium and processing the alloy.
Abstract: The invention relates to a process for producing sinterable molybdenum metal powder in a moving bed, sinterable molybdenum powder and its use.
Abstract: The invention relates to sputter targets and methods for depositing a layer from a sputter target. The method preferably includes the steps of; placing a sputter target in a vacuum chamber; placing a substrate having a substrate surface in the vacuum chamber; reducing the pressure in the vacuum chamber to about 100 Torr or less; removing atoms from the surface of the sputter target white the sputter target is in the vacuum chamber (e.g., using a magnetic field and/or an electric field). The deposited layer preferably includes a molybdenum containing alloy including about 50 atomic percent or more molybdenum, 0.1 to 45 atomic percent titanium; and 0.1 to 40 atomic percent of a third metal element that is tantalum or chromium.
Type:
Grant
Filed:
April 5, 2013
Date of Patent:
October 6, 2015
Assignee:
H.C. STARCK INC.
Inventors:
Gary Alan Rozak, Mark E. Gaydos, Patrick Alan Hogan, Shuwei Sun
Abstract: A refractory metal plate is provided. The plate has a center, a thickness, an edge, a top surface and a bottom surface, and has a crystallographic texture (as characterized by through thickness gradient, banding severity; and variation across the plate, for each of the texture components 100//ND and 111//ND, which is substantially uniform throughout the plate.
Abstract: In various embodiments, protective layers are bonded to a steel layer, overlapped, and at least partially covered by a layer of unmelted metal powder produced by cold spray.
Type:
Grant
Filed:
June 2, 2014
Date of Patent:
August 4, 2015
Assignee:
H.C. Starck Inc.
Inventors:
Steven A. Miller, Leonid N. Shekhter, Stefan Zimmermann