that seem to be a stretch of the truth, this metallic compound Tantalum hafnium carbide has a melting point of over 7000F, well over it. Also being a carbide it should be VERY hard. a metallic compound with a melting point well over 7000F is mind bending and other than its price seems like the perfect alloy for leading edges and other high heat ...

1. Tantalum Hafnium Carbide Alloy (3990℃). Tantalum hafnium carbide alloy takes the 1st place in our list of the materials with the highest melting point.. Tantalum hafnium carbide alloy (Ta4HfC5) actually refers to tantalum and hafnium pentacarbonate compound, which has the highest melting point among known compounds. It can be considered to be composed of two …

Among the transition metal carbides, tantalum carbide (TaC) has gained significant interest due to its attractive mechanical and electronic properties. Here, we have performed high pressure and high temperature (HPHT) measurements on the physical properties of TaC under 5.5 GPa and rhythmically increased temperatures from 1000 to 1500 °C. The …

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 TPS is an isolator material which have range temperature −121 °C until 1.649 °C. This paper analyzes Tantalum Carbide (TaC) and Hafnium Carbide (HfC) for spacecraft material. We show that Tantalum Carbide (TaC) and Hafnium Carbide (HfC) would rise above the TPS materials temperature. The comparison among RCC, HRSI, LRSI, FRSI, and TaC ...

Tantalum carbide (TaC) and hafnium carbide (HfC) possess extremely high melting points, around 3900 oC, which are the highest among the known materials. TaC and HfC exhibit superior oxidation resistance under oxygen deficient and rich environments, respectively. A versatile material can be expected by forming solid solutions of TaC and HfC.

The formation of the tantalum-rich carbide Ta 2 C and Ta 4 C 3 phases at lower HfC contents was explained from the carbon loss intrinsic to VPS processing. The stabilization of the TaC phase at higher HfC contents is contributed to the thermodynamic influence of hafnium in the ternary tantalum–hafnium–carbon system.

Tantalum Hafnium Carbide （Ta4HfC5）. 4TaC-HfC is the compound with the highest melting point currently known. It is a solid solution composed of a binary compound of tantalum carbide (melting point 3983 ℃) and hafnium carbide (melting point 3928℃), which is used in the field of ultra-high temperature cermets. Molecular formula:Ta4HfC5.

Tantalum hafnium carbide is a refractory chemical compound with a general formula, which can be considered as a solid solution of tantalum carbide and hafnium carbide.

Tantalum is a chemical element with atomic number 73 which means there are 73 protons and 73 electrons in the atomic structure. The chemical symbol for Tantalum is Ta. Tantalum is a rare, hard, blue-gray, lustrous transition …

Re: Cool new knife material: Tantalum Halfnium Carbide. Even current ceramics aren't a meaningful improvement on good steel IMO, they hold an acute edge longer, but not enough to make up for the fact that they can't really be restored to optimum hardness without special tools. still more knives than sharpening stones...

Methods of forming thin-film structures including metal carbide material, and structures and devices including the metal carbide material are disclosed. Exemplary structures include metal carbide mate ... (TiCl 4), tantalum chloride TaCl 5, and hafnium chloride (HfCl 4). In accordance with exemplary embodiments of the disclosure, the fourth ...

Hafnium Carbide ( HfC ) - Properties and Applications. Download PDF Copy. Request Quote. Jan 8 2004. 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.

The ternary compound tantalum hafnium carbide has one of the highest melting points of all known compounds (4215 °C). WikiMatrix Thus, rather than carbon, dust particles or liquid droplets of a material such as tungsten (melting point 3695 K, boiling point 6203 K) or tantalum hafnium carbide (melting point 4263 K, boiling point some unknown ...

Hafnium carbide is usually synthesized with hafnium dioxide (HfO2) and carbon in an inert or reducing atmosphere. The reaction temperature is 1900-2300℃. ... At present, the substance with the highest melting point known on the earth is a compound of hafnium, four tantalum hafnium pentacarbide, with a melting point of 4215°C. It is precisely ...

This paper will also present the results of various metallic and ceramic coatings including chromium, titanium carbide (TiC), hafnium carbide (HfC), tantalum carbide (TaC), hafnium nitride (HfN), titanium-boron-carbonitride (TiBCN), and partially yttria stabilized zirconia (YSZ), and HfO2-based TBC coatings deposited by EB-PVD for various ...

Tantalum carbide (TaC) and hafnium carbide (HfC) possess extremely high melting points, around 3900 o C, which are the highest among the known materials. TaC and HfC exhibit superior oxidation resistance under oxygen deficient and rich environments, respectively. A versatile material can be expected by forming solid solutions of TaC and HfC.

DOE PAGES Journal Article: Fabrication of Tantalum and Hafnium Carbide Fibers via ForcespinningTM for Ultrahigh-Temperature Applications Journal Article: Fabrication of Tantalum and Hafnium Carbide Fibers via ForcespinningTM for Ultrahigh-Temperature Applications

Tantalum hafnium carbide is a refractory chemical compound with a general formula TaxHfy-xCy, which can be considered as a solid solution of tantalum carbide and hafnium carbide. Le carbure de tantale - hafnium est un composé chimique réfractaire de formule brute TaxHf1-xCy, que l'on peut considérer comme une solution solide de carbure de ...

tac has been reported to exhibit plasticity at temperatures greater than 1500 °c. 3 when carbon is depleted from tac, the rhombohedral ta 4 c 3 and/or trigonal ta 2 c phases can precipitate. 4, 5 these phases have been shown to yield a microstructures with either secondary phases laths in a crisscross pattern within equiaxed grains or parallel …

While hafnium nitride is the most refractory of all the metal nitrides, hafnium carbide is the most refractory of all the binary materials. With a melting point of about 3900 °C it is one of the most refractory binary compounds known. Hafnium has been successfully alloyed with several metals including iron, titanium and niobium. Tantalum

Abstract Powders of nanocrystalline carbide Ta4HfC5 were produced by the sol–gel synthesis of a finely divided Ta2O5–HfO2–C composite powder (with tantalum pentaamyloxide and hafnium acetylacetonate as precursors and a phenolformaldehyde resin as a carbon source) with subsequent low-temperature carbothermal synthesis (1200–1300°C, …

In particular, the team from Imperial College London discovered that the melting point of hafnium carbide is the highest ever recorded for a material. Being able to withstand temperatures of nearly 4000°C could pave the way for hafnium carbide and tantalum carbide materials to be used in ever more extreme environments.

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 ...

Standard: ASTM B521 Grade: RO5200, RO5400, RO5252 (Ta-2.5W), RO5255 (Ta-10W) Tantalum Tube Applications With the features of high melting point, corrosion-resist, good machinability in a cold environment, tantalum, and …

Tungsten carbide titanium tantalum hafnium solid solution powder. Cite. Download. Patent: CN-102808095-B: Inventor: GUO WEI. ZHOU YI. CHEN ZHENGQIANG. Assignee: CHANGSHA WING HIGH NEW MATERIALS CO LTD. Dates: Grant . 2014/03/19. Priority . 2012/07/19. This web page summarizes information in PubChem about patent CN …

Solid solutions of Tantalum carbide (TaC) and Hafnium carbide (HfC) were synthesized by spark plasma sintering. Five different compositions (pure HfC, HfC-20 vol% TaC, HfC- 50 vol% TaC, HfC- 80 vol% TaC, and pure TaC) were sintered at 1850°C, 60 MPa pressure and a holding time of 10 min without any sintering aids. Near-full density was ...

Tantalum hafnium carbide is a refractory chemical compound with a general formula, 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, 3,983 °C (7,201 °F) and 3,928 °C (7,102 °F), respectively, and their "alloy" with a …

Tantalum Hafnium Carbide is a solid solution of tantalum carbide (TaC) and hafnium carbide with the general formula Ta x Hf y-x C y. Tantalum hafnium carbide is extremely refractory, with an approximate melting point of 3990 °C, and has numerous high temperature applications such as spacecraft components .

China Tantalum Hafnium Carbide, Find details about China Hafnium Carbide, Hfc Powder from Tantalum Hafnium Carbide - Changsha Langfeng Metallic Material Co., Ltd.

Carbide powder is a binary compound formed by carbon (other than hydrogen) which is smaller or similar to electronegativity. Carbides have a higher melting point. Most carbides are carbon and metal at high temperatures. The next reaction is obtained. The properties of the element are divided into metal carbides and non-metal carbides.

Material full name Material chemical formula Sample labeling Hafnium carbide HfC HC Tantalum carbide TaC TC76 (76% density) TC92 (92% density) Silicon carbide SiC SC fact, its emissivity ranges from 0.35 at 1100 K to about 0.60 slightly above 1400 K. TC92 sam- ple has the lowest emissivity at all temperatures, with values that are about a half ...

Tantalhafniumcarbid (Ta 4 HfC 5) ist eine intermetallische Verbindung aus Tantal, Hafnium und Kohlenstoff.Es handelt sich um eine äußerst harte nichtoxidische Keramik.Sie besitzt den höchsten derzeit bekannten Schmelzpunkt von 4215 °C (4488 K). Einzig Tantalcarbid in der Form TaC 0,89 besitzt einen ähnlich hohen Schmelzpunkt (4000 °C). Es ist auch das einzig …

The interest in tantalum carbide (TaC) and hafnium carbide (HfC) has been growing in recent years due to their extremely high melting points, high hardness, and elastic moduli, and more importantly, their ability to form …