y2o3造句
例句与造句
- Microstructure of nano - y2o3 cobalt based alloy composite coating by laser cladding
钴基合金激光熔覆层的组织 - Influence of y2o3 on ni - base alloy at q235 steel surface by laser cladding
基合金复合材料激光熔覆层组织与耐磨性 - Influence of y2o3 on the properties of li2o - al2o3 - sio2 system glass - ceramics by polyacrylamide gel method
2系统微晶玻璃晶化和性能的影响 - Usually , they are stretched step by step and form the fibers fmally , but the y2o3 particles ca n ' t form the fibers and just smash
多数情况下稀土氧化物颗粒被逐渐拉长成纤维状，但氧化钇颗粒破碎成颗粒而不形成纤维状。 - Cao and y2o3 are additives in a1n green sheet . ya1o and caalo complex oxides have low melting point compare to the soaking temperature of a1n sintering
通过改变导带浆料中sio _ 2的含量，在促使导带浆料完成烧结的同时，在导带中也保留一定数量的孔隙。 - It's difficult to find y2o3 in a sentence. 用y2o3造句挺难的
- Y3 cathode still has excellent emission capability though cheap y2o3 partially substitutes for expensive sc2o3 , this has great significance for reducing the cost of cathode
Y3阴极用廉价的y2o3部分替代昂贵的sc2o3后仍然具有优异的电子发射性能,对降低阴极的成本具有重要的实际意义。 - Toughening mechanism of zro2 ( y2o3 ) to alumina ceramic came from the phase change of t - zro2 on the grain boundary . with the content augmentation of zro2 ( y2o3 ) , the fracture toughness of the alu
Mga12o ;和zro :平均热膨胀系数与a1203的热膨胀系数比较接近，匹配性较好，不会产生明显的热应力，有利于氧化铝陶瓷力学强度的提高。 - ( 4 ) light - induced spectral change and its restore processes in the dark in nanocrystalline y2o3 : tb were studied . it was observed that the intensity in 4f5d band increased by ultraviolet and visible irradiation
( 4 )研究了光辐照引起的y _ 2o _ 3 ： tb荧光增强现象，观察到颗粒尺寸越小辐照光波长越短，光诱导荧光增强效果越明显。 - Zro2 ( 6 % y2o3 ) ( ysz ) nano - powders were perpared by dc non - transferred arc plasma systems . based on the tem and xrd analysis results of powde , the particle size of tsz was about 20nm with high purity more than 98 . 7 %
采用直流电弧等离子体“喷射法” ，以草酸盐干凝胶粉为原料，制备出了平均尺寸为为20nm的ysz纳米粉末，粉末纯度大于98 . 7 。 - In this dissertation , eu2o3 - sc2o3 , y2o3 - sc2o3 co - doped tungsten powders and impregnated cathodes related to these powders have been prepared by pressing , sintering and impregnating for the first time
本论文首次制备了复合稀土eu2o3 - sc2o3 、 y2o3 - sc2o3掺杂的钨粉,通过粉末压制、烧结和基体浸盐的工艺制备了相应的复合稀土/氧化钪-钨基扩散阴极。 - Compared with micro - sized y2o3 : eu and gd2o3 : eu phosphors prepared by a conventional method , nanosized y2o3 : eu and gd2o3 : eu synthesized by the present work , gives a clear blue shift in the emission spectrum , and a clear red shift in the excitation spectrum
同时，发现了纳米晶一些新奇的发光性质，即：发射光谱蓝移现象，激发光谱红移中电荷迁移带( ctb )明显红移，猝灭浓度提高等。 - Y2o3 : eu nanotubes were synthesized by a surfactant assembly mechanism . tem image confirms the formation of the tubular structures . under the excitation of ultraviolet light , the nanotubes show luminescence properties different from that of y2o3 : eu nanocrystallites
低温下的激光选择激发光谱表明，处于纳米管壁内部的发光中心具有较为确定的格位对称性，其发射光谱具有清晰的光谱结构。 - Weight up y2o3 and ai2o3 with the mole proportion of 3 / 5 . after sufficient grinding , we got the round pieces of f 20mm and thickness 5mm with 30mpa pressure . then sinter the pieces in the hydrogen atmosphere at 1700 ? for 5 hours
按照摩尔比为3 ： 5称取纯度为99 . 99的y _ 2o _ 3和al _ 2o _ 3 ，将配好的原料充分研磨混合，然后用30mpa的压力压制成f20mm 、厚度为5mm的薄片，在高温钨钼炉中通流动氢气，在1700下烧结5小时。 - The observation on the microstructures of matrices and cathodes indicate that eusco3 exists in sintered matrices and cathodes of e3 , while sc2o3 and y2o3 form a complete solid solution in matrices of y3 . the influence of microstucture to the emission properties of cathodes have been discussed
对烧结基体和阴极的微观结构进行了分析,结果表明e3基体和阴极中生成了eusco3 , y3基体中sc2o3和y2o3完全形成了的固溶体,讨论了微观结构对阴极性能的影响。 - The results show : la2o3 , ceo2 , nd2o3 is applicable for the additives of mh electrode because of the good comprehensive performance of the negative especially during the high rate discharge phase ; y2o3 is not fit as an additive for mh electrode ; the ceo2 content in negative has great effects on the performance during the high rate discharge phase and 2 % ( mass percentage ) is the best one , furthermore , the improvement of purity of ceo2 is beneficial to the comprehensive performance ; the mixture of coo and ceo2 as a additive is more suitable for mh electrode during the high rate discharge phase whose properties are better than that of addition of coo and ceo2 respectively
研究表明， mh电极中添加la _ 2o _ 3 、 ceo _ 2 、 nd _ 2o _ 3显著提高了电极电化学综合性能，尤其是大电流放电性能，适宜作大电流放电下电池负极的添加剂； y _ 2o _ 3不适宜作负极添加剂； ceo _ 2添加量对大电流放电性能影响较大， ceo _ 2的适宜添加量2wt ；提高ceo _ 2纯度能改善mh电极电化学综合性能。 mh电极中添加coo 、 ceo _ 2复合添加剂后电极综合性能比单独添加coo和ceo _ 2更优良，适宜作大电流放电下电池负极的添加剂。
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