Our hafnium carbide powder is widely used as an additive for cemented carbide products. Fabrication Methods. Thermal Spray Process - Plasma Spray. Hafnium carbide powders are plasma sprayed to form hardface coatings on surfaces requiring increased wear resistance. Powder Metallurgical (P/M).
The hafnium carbide and hafnium carbonitride samples were then placed on graphite plates to be tested in a vacuum environment. When heated with a battery using molybdenum electrodes, the melting .
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Hafnium carbide (Hf C) is a chemical compound of hafnium and carbon.With a melting point of about 3900 °C it is one of the most refractory binary compounds known. However, it has a low oxidation resistance, with the oxidation starting at temperatures as low as 430 °C.
The chemical formula for Hafnium Carbide is HfC. It is the most refractory binary compound known to man. Similarly, hafnium nitride (HfN) is the most refractory nitride known with a melting point of approximately 3305 °C.
Hafnium Carbide is available in numerous forms and custom shapes including disc, granules, ingot, pellets, pieces, powder, rod, and sputtering target. High purity forms also include Carbide powder, submicron powder and nanoscale, single crystal or polycrystalline forms. Hafnium Carbide is generally immediately available in most volumes.
12567 Hafnium carbide, 99.5% (metals basis excluding Zr), Zr 1% . CAS Number. 12069-85-1. Synonyms SDS Certificate of Analysis Product Specification Technical Inquiry Stock No. Size Price ($) Quantity Availability; 12567-03: 1g: 16.00: 12567-09: 10g: 51.30: 12567-18: 50g: 230.00 .
Hafnium carbide-based compounds are practical high dielectrics, allowing reduction of the gate leakage current which improves performance at such scales. Also, Due to its heat resistance and its affinity to oxygen and nitrogen, hafnium is a good scavenger for oxygen and nitrogen in gas-filled and incandescent lamps.
Hafnium carbide (HfC) EINECS 235-114-1. Hafnium--methane (1/1) CTK4B1986. DTXSID00923528
Hafnium carbide (HfC) has the highest melting point of any known two-element compound at nearly 7,034 degrees Fahrenheit (3,890 degrees Celsius), according to Jefferson Lab. The compound hafnium .
Hafnium carbide with zirconium carbide, tantalum carbide and other carbide could be made into multiple solid solution. 4TaC HfC has a melting point of 4215°C, the highest melting point compound as known. Hafnium carbide’s high hardness and melting point, can be used as additives in cemented carbide products.
Changsha Langfeng Metallic Material Ltd. research center conducted the following experiment:putting 1% of hafnium carbide powder in grades K10 carbide cutting tools, the grades compiled for: K10h,using 1.05 micron D50 hafnium carbide powder produced by Changsha Langfeng Metallic Material Ltd., batch number: 1508, and then putting the same ingredient in the process, the same the pressing .
A hafnium carbide (HfC) nanostructure, i.e., HfC nanocrystal chain, was synthesized by a chemical vapor deposition (CVD) method. X-ray diffractometer, field-emission scanning electron microscope, transmission electron microscope, and energy-dispersive X-ray spectrometer were employed to characterize the product.
Hafnium(IV) carbide <1.25 μm particle size CAS Number 12069-85-1. Linear Formula HfC . Molecular Weight 190.50 . EC Number 235-114-1. MDL number MFCD00016126. PubChem Substance ID 24881525. NACRES NA.22
Hafnium(IV) carbide. AKOS015903741. SC-19486. Y1428. Hafnium(IV) carbide, <1.25 mum particle size
MATECH is developing structural ceramic fibers from silicon carbide, silicon nitride/carbide, silicon oxycarbide, tantalum carbide, and hafnium carbide. Preceramic polymer derived "green" fiber is produced and wound continuously, as illustrated above. MATECH's control over the rheological behavior of its preceramic polymers allows for easy melt .
Hafnium is also very good at forming super-alloys, which can withstand very high temperatures and has found applications in making a variety of parts for space vehicles. In terms of regular compounds rather than alloys, hafnium carbide has the highest melting point, of any compound consisting of just two elements, at just under
2. Synthesis Methods. Zirconium and hafnium carbides and nitrides can be synthesized by direct reaction of metal or metal hydride powders with graphite or N 2.The reactions are strongly exothermic and can be used in a self-propagated high temperature synthesis (SHS) process .The reaction of oxides with graphite (carbothermal process) is widely used for industrial synthesis of bulk carbide .
The hafnium carbide compound by our company based on new techniques is featured with high purity, even size distribution, large specific area, high surface activity and low apparent density, etc., based on which, powder materials of coarse-grain hafnium carbide and 45-nanometer hafnium carbide are core products.
Good results can be obtained with both cemented carbide and high speed tools. However, the cemented carbide usually provides a better finish and higher productivity. Hafnium machine’s to an excellent finish due to the hafnium properties, and the operation requires somewhat little horsepower compared with that of alloy steel.
The hafnium carbide addition is known to increase strength of refractory metals. The applications for these materials are in the joining, medical, aerospace, furnace, and heat treat industries.
Hafnium alloys with several other metals, such as iron, niobium, tantalum and titanium. Hafnium-niobium alloys, for example, are heat resistant and are used in aerospace applications, such as space rocket engines. Hafnium carbide is used to line high temperature furnaces / kilns due to its refractory properties (it does not melt at high .
Hafnium(IV) carbide −325 mesh; CAS Number: 12069-85-1; EC Number: 235-114-1; Linear Formula: CHf; find Sigma-Aldrich-399574 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich.
Tantalum hafnium carbide is a refractory chemical compound with a general formula Ta x Hf y-x C y, which can be considered as a solid solution of tantalum carbide and hafnium carbide.Individually, these two carbides have the highest melting points among the binary compounds, 4,150 K (3,880 °C; 7,010 °F) and 4,201 K (3,928 °C; 7,102 °F), respectively, and their "alloy" with a composition Ta .
For essentially stoichiometric hafnium carbide (HfC 0,98), a melting point above 3927 °C was reported, which is the highest value measured for binary phases [12,13]. The ternary phases of these metals may have better mechanical properties [, , ] and even higher melting points [11,17].
Hafnium carbide (HfC) single crystal specimens were prepared by arc floating zone refinement from sintered stock. Field emission patterns from heated HfC emitters were observed, and emission .
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