共搜索到5408条信息，每页显示10条信息，共541页。用时：0小时0分0秒491毫秒
and dynamic random access memories[1, 2]. Microarc oxidation(MAO) is a new technology to produce ceramic films. Films obtained by MAO treat- ment on valve metals such as Al, Ti and Mg have super hardness......
of TiAl alloys [J]. Trans Nonferrous Met Soc China, 1998, 8(4): 562-566. [6] ACOFF V L, WILKERSON S, ARENAS M. The effect of rolling direction on the weld structure and hardness of gamma-TiAl sheet......
[18]. 图7 烧结体密度与硬度的关系 Fig.7 Relationship between density and hardness of sintered sample 3 结 论 a. 在高压制压力下,使用模壁润滑工艺,退火粉末的模压烧结体获得最高密度7.26/cm3,相对密度为93.2%,布氏硬度为112.7的材料. b. 对......
-cell aluminum foam can introduce non-uniformity of microscopic structure. According to the Smith theory[15], under stress, the hardness of second-phase substance and foreign particles existing......
nanoparticle without obvious agglomeration. References [1] KIZUKA T, ICHINOSE H, ISHIDA H. Structure and hardness of nanocrystalline silver [J]. J Mater Sci, 1997, 32(6): 1501-1507. [2] LIANG Hai-chun, RONG......
, such as mechanical hardness, electrical resistivity, wear resistance and high-frequency performance due to the reduction of the eddy currents[7]. Therefore, the nano-processing seems to be a potential......
cost. The Si addition to magnesium alloys causes an increased fluidity of the molten metal. The Mg2Si formed by the addition of Si exhibits high melting point, high hardness, low density, high......
widely used in some industrial fields owing to its high melting temperature, hardness, elastic modulus, electro-conductibility and thermal diffusivity, and excellent refractory properties and chemical......
Metallurgy, 2005, 10(6): 356-360.(in Chinese) [12] ZHANG Li, CHEN Shu, XIONG Xiang-jun, et al. Microstructure and Vickers hardness of functionally graded WC-Co cemented carbide with dual phase structure......
. Hardness control in electrodepositing Ni-Fe-P alloy[J]. Electroplating and Protection Pollution, 1997, 17(3): 3-5. (in Chinese) [13] ZHANG Yun-cheng. Plating Handbook[M]. Beijing: National Defense......
