Results 21 to 30 of about 7,543 (218)
Effect of nanostructuration on compressibility of cubic BN [PDF]
, 2012 Compressibility of high-purity nanostructured cBN has been studied under quasi-hydrostatic conditions at 300 K up to 35 GPa using diamond anvil cell and angle-dispersive synchrotron X-ray powder diffraction.
A. Dewaele +25 more
core +4 more sources
The practice of using a cutting tool with PCNB group BL in the processing of hardened steels
Технічна інженерія, 2021 The industry is increasingly using the technological capabilities of metalworking using tools made of superhard materials, in particular polycrystalline cubic boron nitride (PCВN) group BL.
Ya.P. , P.P.
doaj +1 more source
Pulsed laser micro ablation of polycrystalline cubic boron nitride
Procedia CIRP, 2020 Polycrystalline cubic boron nitride (PcBN) is the second hardest material after diamond. Because of its unique properties, PcBN is extensively used as a cutting tool material for the machining of hardened steels. Pulsed laser ablation (PLA) offers the possibility to generate tailored microgeometries on PcBN tools and can thereby increase tool ...
Denkena, Berend +3 more
openaire +1 more source
Solid-state metathesis reactions under pressure: A rapid route to crystalline gallium nitride [PDF]
, 1998 High pressure chemistry has traditionally involved applying pressure and increasing temperature until conditions become thermodynamically favorable for phase transitions or reactions to occur.
Heath, James R. +6 more
core +1 more source
Journal of Advanced Ceramics, 2022 The high strength and toughness of natural materials are mainly determined by a combination of mechanisms operating at different length scales, which can be used as a strategy to reduce the intrinsic brittleness of ceramics. Inspired by the architectures
Shu-na Chen +6 more
doaj +1 more source
Effects of rotational speed on the Al0.3CoCrCu0.3FeNi high-entropy alloy by friction stir welding
High Temperature Materials and Processes, 2020 Welding and relevant studies are indispensable to employ high-entropy alloys for practical applications. In this study, Al0.3CoCrCu0.3FeNi high-entropy alloy with single FCC phase was used to make “bead-on-plate” friction stir welds at different ...
Lin Po-Ting +4 more
doaj +1 more source
Hard machining of agricultural machines parts
Research in Agricultural Engineering, 2013 For the renovation and/or improvement of the surface properties of machine elements, hard facing is often used. Hard structures obtained in layers or by heat treatment achieve a hardness of up to 68 hardness (HRC) or even more.
R. Drlička +4 more
doaj +1 more source
Experimental Investigation of Material Properties in FSW Dissimilar Aluminum-Steel Lap Joints
Metals, 2021 The friction stir lap welding of AA5083 H111 aluminum alloy and S355J2 grade DH36 structural steel was investigated. A polycrystalline cubic boron nitride with tungsten and rhenium additives tool was used.
Michelangelo Mortello +3 more
doaj +1 more source
Phase boundary between Na-Si clathrates of structures I and II at high pressures and high temperatures [PDF]
, 2016 Understanding the covalent clathrate formation is a crucial point for the design of new superhard materials with intrinsic coupling of superhardness and metallic conductivity.
Godec, Yann Le +5 more
core +3 more sources
Технічна інженерія, 2022 The use of hardened steels and high-hardness alloys provides the necessary mechanical and operational properties of machine parts and mechanisms, as a result of which the demand for the use of such materials is constantly growing.
A.O. , Yu.O. , S.A., S.An.
doaj +1 more source