Results 181 to 190 of about 19,927 (215)

Tribologische Untersuchungen mikrostrukturierter B4C-Schichten

2023
In the context of the presented results, thin boron carbide coatings (B4C) are investigated concerning their potential for tribological applications. Stoichiometric B4C thin films with varying mechanical properties are deposited onto steal using pulsed laser deposition (PLD). Film thicknesses are in the range of > 1 μm. Subsequently, these partially
Jahn, Falko, Weißmantel, Steffen
openaire   +1 more source

Sintering Al2O3-B4C ceramics

Journal of Materials Science, 1983
Microstructural development of Al2O3-B4C composite ceramics has been studied as a function of Al2O3 and B4C powder types, and also in various sintering atmospheres. Boron carbide suppresses the sinterability of Al2O3 powder, and the densification of the composite is strongly dependent on both B4C and Al2O3 properties.
openaire   +1 more source

Microstructures and mechanical properties of a two-layer B4C/Al–B4C/TiB2 composite

Materials Science and Engineering: A, 2013
Abstract A two-layer structure composite, in which one layer was B4C/Al compound and the other layer was B4C/TiB2 compound, was prepared using a two-step method for both hot pressing and infiltration of aluminum in vacuum. The experimental results showed that the two-layer B4C/Al–B4C/TiB2 composite having good interfacial bonding was prepared. Before
XinYan Yue, JianJun Wang, XiuMei Li, Li You, HongQiang Ru   +4 more
openaire   +1 more source

Reactive Synthesis of B4C–CrB2, B4C–TiB2, AND B4C–TiCrB2 Heterophase Ceramics by Spark Plasma Sintering

Powder Metallurgy and Metal Ceramics, 2023
T. M. Kutran, M. V. Zamula, B. A. Pokhylko, O. V. Shyrokov, V. G. Kolesnichenko, V. V. Kovalchuk, A. V. Stepanenko, H. Yu. Borodianska   +7 more
openaire   +1 more source

Characterization of Mo/B4C multilayers

Thin Solid Films, 1991
Abstract The Mo/B 4 C multilayer system is selected for maximum, normal incidence reflection of 6.7 nm X-rays. Application in projection lithography requires structural optimization for smooth layering and minimal interface roughness. A transmission electron microscopy analysis of samples prepared in cross-section reveals an intrinsic layer roughness
A.F. Jankowski, P.L. Perry
openaire   +1 more source

AIN-B4C kompozitelerinin üretimi

2021
SUMMARY Metal matrix composites are attractive engineering materials. They have good properties like; high strength, low weight, higher service temperature and higher elastic modulus. There are several methods for the preparation of these composites. Infiltration is one of the most economical process.
openaire   +1 more source

Influence analysis of B4C content on the neutron shielding performance of B4C/Al

Radiation Physics and Chemistry, 2022
Changyuan Li, Xiaobin Xia, Jun Cai, Zhihong Zhang, Jianhua Wang, Zhicheng Qian, Xiaohe Wang, Ye Dai   +7 more
openaire   +1 more source

Effect of B4C particle reinforcement on tensile properties of Al7075/B4C composites

Materials Today: Proceedings, 2022
K. Krishnamoorthi, A.P. Arun, V. Manivel Muralidaran   +2 more
openaire   +1 more source

???????????????????? ??????????????????, ???????????????????????????????????????? ?? ?????????????????? ???????????????? ???????????????????????????? ???????????????? ?????????????? W2B5???TiB2???B4C

2012
???????????????????? ??????????????????????, ???????????????????????????? ????????- ???? ???????????????????????????????????? ?? ???????????????? ???????????????????????????? ?????????????????????????? ???????????????? ?????????????? W2B5???TiB2???B4C. ???????????????? ?????????????????????????????? ???????????????????? ?????????????????????? ??????????
openaire   +1 more source

????????????????????-?????????????? ?????????????????????? ?? ???????????????????????? ?????????????????????????? ?????????????????????? W-B4C ?? ???????????????? 2,5 ???? ?????? ??????????????

2015
Heating-generated changes of the structure and phase composition of multilayers, consisting of alternating W and B4C layers with the bilayer thickness (period) of 2.5 nm, were studied by X-ray scattering and electron microscopy in the temperature range of 100 ??? 1000 ????.
openaire   +1 more source