In this paper , we research the effect of particles size on optical properties of cermet films that consist of mgf2 matrix and embedded noble metal nanoparticles 本论文主要对贵金属颗粒嵌埋在mgf _ 2陶瓷基体形成的金属陶瓷薄膜光学性质的尺寸效应进行了研究。
Until now , many methods have been applied in the preparation of nanosized wc - co powder , but it is difficult to get nanocrystalline wc - co cermet by sintering 但是迄今为止，研究者虽然可以通过各种方法制备纳米wc - co粉末，却在烧结制备纳米晶wc - co硬质合金方面遇到了很多困难。
While the fodri chapter was the focal point , in which the preparation , microstructure and photoelectric properties of cu - mgf , cermet films were discussed in detail 膜的微结构、光学常数和应力特性；第四章是本文的重点，详细论述了cll mgf 。系列样品的制备、微结构和光电特性。
We compare the theoretical results with the experimental results and discuss the applicability of the three effective medium theories to nanoparticles cermet films 我们将理论计算结果同用椭圆偏振光谱仪得到的实验值进行了比较，讨论了三种有效介质理论对不同微结构薄膜体系的适用性。
The sintering time also affects the specimens " properties . nano - composite wc - co powder can be hot press sintered to cermet whose hra is 94 . 6 and trs is 1183 mpa under 1350 for 2 hours 最终烧结实验表明纳米复合wc - co粉末1350保温2小时条件下的热压烧结可以获得抗弯强度为1183mpa ，洛氏硬度为94 . 6的硬质合金。
Material scientists over the world are having been working earnestly and consciously to seek out materials having both qualities of metal and nonmetal . zro2 - ni cermet materials have been widely used in the sofc and fgm areas 将金属的高强度、高韧性、高电导与陶瓷的高硬度、耐高温、耐腐蚀性能完美结合，从而制备出金属陶瓷是各国材料研究者梦寐以求的目标。
Using in situ formation of ternary boride base cermets hard phases through chemical reactions and sinterbonding onto steel substrates though liquid sintering we successfully prepared a kind of ternary boride base cermet 摘要通过化学反应将原料粉来生成三元硼化物硬质相并通过液相烧结烧与钢很好的结合，用这种工艺成功地在钢基体上涂覆了预压制的三元硼化物基金属陶瓷。
The optimum annealing temperature 350 ? and the best keeping warm duration 40 minutes were obtained by studying crossly the ed samples of cu ( vol20 % ) mgf2 . the prepared cu - mgf2 cermet films were all sintered under that condition 通过对cu ( vol20 ) mgf _ 2的电镜样品经用同一退火温度不同保温时间以及不同退火温度相同保温时间的交叉研究得出：最佳退火温度为350 ，最佳保温时间为40min 。
The mechanism of corrosion and erosion resistance of nicr alloy and cermet coatings were explored and their performance were compared with 20g , 20g covered by dope and the coatings of fecral , nicrti used widely at present 并将由这些新的涂层材料和目前广泛使用的fecral ， nicrti以及与未加以保护的20g基体和刷涂料保护的20g在抗高温氧化、高温腐蚀、耐冲蚀磨损和热震性等方面加以比较。
Cu ( vol20 % ) mgf2 cermet film was also sputtered and meas ured and analyzed by xps , the results showed that the volume fraction of cu was 22 . 6 % , which was very close to that of theoretical calculation and the longitudinal distribution of cu component was even 用x射线光电子能谱xps对其中某一组分cu ( vol20 ) mgf _ 2样品进行刻蚀测量表明： cu的体积百分比约为22 . 6 ，与实验预测相当接近，且样品的组分纵向分布均匀。
