Results 101 to 110 of about 1,653 (221)

Solid solution synthesis of tantalum carbide-hafnium carbide by spark plasma sintering

, 2017
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 ...
Sudipta Seal, Agarwal, Arvind, Cheng Zhang, Benjamin Boesl, Zhang, Cheng, Arvind Agarwal, Seal, Sudipta, Boesl, Benjamin, Gupta, Ankur, Ankur Gupta   +9 more
core   +1 more source

Synthesis, pyrolysis mechanism, and ceramic ablation performance of a TaC precursor with unsaturated bonds

Journal of Advanced Ceramics
Tantalum carbide (TaC) is widely used for aerospace thermal protection because of its high melting point and excellent high-temperature mechanical properties.
Chuhan Sun, Honghai Pan, Xingui Zhou, Jinshan Yu, Honglei Wang   +4 more
doaj   +1 more source

Characterization and refinement of carbide coating formation rates and dissolution kinetics in the Ta-C system [PDF]

, 1996
The interaction between carbide coating formation rates and dissolution kinetics in the tantalum-carbon system was investigated. The research was driven by the need to characterize carbide coating formation rates.
Rodriguez, P.J.
core  

Influence of B4C and BN additiveson the structure and wear resistance of coatings producedby short-pulse laser claddingof a Ta-and SiC-based powder mixture

Frontier Materials & Technologies
The most rational approach in the production of friction units is not to manufacture the entire part from high-quality materials but to apply thin coatings (up to hundreds of micrometers) from expensive materials onto steels already widely used in ...
Roman M. Kuznetsov, Vitaly A. Sirosh, AlekseyV. Makarov, Evgeny V. Kharanzhevskiy, Natalia N. Soboleva, Elena G. Volkova   +5 more
doaj   +1 more source

High-Temperature Deformation Behavior of Tantalum Carbide

, 1982
High-temperature deformation behavior of tantalum carbide, TaC_, prepared by the floating zone technique with radio-frequency induction heating, is investigated.
吉永, 日出男, 鈴木, 栄一, Yoshinaga, Hideo, 栗下, 裕明, Suzuki, Ei\u27ichi, Kurishita, Hiroaki   +5 more
core  

Chemical Vapor Deposition of Tantalum Carbide in the TaBr5–CCl4–Cd System

The tantalum carbide coatings were deposited on substrates made of 12Kh18N10T steel, ZhC6 alloy, and molybdenum by reduction of TaBr5 and CCl4 vapors with cadmium vapors at temperatures of 950–1000 K.
Tibor Krenicky, Jan Kudlacek, Daniel Cerny, Oleg Y. Goncharov, Jiri Kuchar, Irina V. Sapegina, Ravil R. Faizullin, Alexander I. Korshunov   +7 more
core   +1 more source

The effects of tantalum on the microstructure of two polycrystalline nickel-base superalloys: B-1900 + Hf and MAR-M247

, 1986
Changes in the γ/γ\u27/carbide microstructure as a function of Ta content were studied in conventionally cast B-1900 + Hf and both conventionally cast and directionally solidified MAR-M247.* The effects of tantalum on the microstructure were found to be ...
G. M. Janowski, Janowski, G. M., Heckel, R. W., B. J. Pletka, Pletka, B. J., R. W. Heckel   +5 more
core   +1 more source

Preparation and properties of porous TaC foam ceramic filter

Journal of Materials Research and Technology
To effectively prevent the contamination of carbon particle volatiles during the preparation of high-purity SiC crystals using the physical vapor transport method (PVT) in ultra-high temperature environments (T ≥ 2000 °C), this paper innovatively employs
Qiao Yu, Wei Sun, Tian Tian, Junjie Xu, Yuzhu Shen, Xiang Xiong   +5 more
doaj   +1 more source

Osteoinductivity enhancement by tailoring the surface chemical bond status: A strategy to mobilize host bone growth factors for in situ bone regeneration

Materials Today Bio
The incorporation of growth factors and biomaterials is a promising strategy for improving osseointegration. However, current strategies to develop biomaterials with exogenous growth factors present disadvantages like inefficiency, difficult deployment ...
Ruiyan Li, Kan Zhang, Chuanyao Dong, Kaiwen Wang, Xinlei Gu, Yanguo Qin   +5 more
doaj   +1 more source

High speed laser cladding as a new approach to prepare ultra-high temperature ceramic coatings

Journal of Advanced Ceramics
Ultra-high temperature ceramic (UHTC) coatings are used to protect the hot-end components of hypervelocity aerocrafts from thermal ablation. This study provides a new approach to fabricate UHTC coatings with high speed laser cladding (HSLC) technology ...
Qiyao Deng, Pengfei He, Chuan Sun, Yang Li, Yue Xing, Yujie Wang, Jinglong Li, Xiubing Liang, Xin Wang, Yujie Zhou, Yujun Cai   +10 more
doaj   +1 more source