Results 111 to 120 of about 7,614 (217)

Stability criteria for cutting insert and grains of super-hard tools [PDF]

, 2012
Failure of cutting tools may be the result of the continual wear, although their productivity can also be loosen due to hack, fracture, shelling or other causes, so generally because of breakage. The embedding of the grain to the binding material is also
Szabó, O.
core  

Finish machining of hardened steel by face milling using uncoated and TiSiN and TiAlN coated PCBN tools

Технічна інженерія
The article presents the results of experimental studies on the influence of various cutting regimes on the surface roughness of high-hardness hardened steel obtained after face milling with polycrystalline cubic boron nitride (PCBN) tools, both uncoated
Ya.Р. Kovalenko, P.Р. Melnychuk
doaj   +1 more source

Superhard cutting materials [PDF]

, 2011
Bakalářská práce je zaměřena na supertvrdé řezné materiály (polykrystalický diamant a polykrystalický nitrid bóru) z hlediska jejich označování, výroby, fyzikálně mechanických vlastností (tvrdost, hustota, elektrická a tepelná vodivost), chemických ...
Janištinová, Edita
core  

Crystal growth and characterization of the antiperovskite superconductor MgC1-xNi3-y

, 2019
By varying the parameters controlling the growth of crystals, including the thermodynamic variables, such as temperature, pressure, and reagent composition and the kinetic factors, namely reaction time and cooling rate, we found the most appropriate ...
Zhigadlo, Nikolai D.
core   +1 more source

Shear driven formation of nano-diamonds at sub-gigapascals and 300 K [PDF]

, 2019
The transformation pathways of carbon at high pressures are of broad interest for synthesis of novel materials and for revealing the Earth's geological history.
An, Qi, Chaudhuri, Jharna, Feng, Biao, Gao, Yang, Goddard, William A., III, Levitas, Valery, Ma, Yanzhang, Zhang, Yanyan   +7 more
core  

Synthesis of Boron-Aluminum Nitride Thin Film by Chemical Vapour Deposition Using Gas Bubbler

Iranian Journal of Materials Science and Engineering, 2019
Boron included aluminium nitride (B-AlN) thin films were synthesized on silicon (Si) substrates through chemical vapour deposition ( CVD ) at 773 K (500 °C). tert-buthylamine (tBuNH2) solution was used as nitrogen source and delivered through gas bubbler.
S. Shanmugan, D. Mutharasu
doaj  

Novel silicon crystals and method for their preparation [PDF]

Plate shaped silicon crystals and their preparation by pouring a silicon melt into a suitable mold and then allowing it to solidify in a temperature gradient were investigated. The production of energy by direct conversion of solar energy into electrical
Authier, B.
core   +1 more source

High temperature and high pressure preparation and properties of cBN/AlN/Al composite materials

Jin'gangshi yu moliao moju gongcheng
ObjectivesWith the gradual application of third-generation semiconductor materials represented by SiC, the electronic devices are developing towards high performance, high power, and high integration.
Xuefeng YANG, Peng ZHANG, Yongjie WANG, Yiyang ZHAN, Xiwang WU, Yuchang WANG, Zhengxin LI   +6 more
doaj   +1 more source

Improving impact resistance of ceramic materials by energy absorbing surface layers [PDF]

Energy absorbing surface layers were used to improve the impact resistance of silicon nitride and silicon carbide ceramics. Low elastic modulus materials were used.
Kirchner, H. P., Seretsky, J.
core   +1 more source

Investigation of high-speed milling of high-carbon cobalt-chromium alloy using a radius end milling tool (Influence of tool material and cutting speed on cutting performance)

Nihon Kikai Gakkai ronbunshu
In recent years, the proportion of elderly individuals in Japan has been increasing, accompanied by a rise in the number of patients with osteoarthritis.
Nao UEDA, Hideharu KATO, Yuu FUKUHARA, Shigehiko SAKAMOTO   +3 more
doaj   +1 more source