| 1. | Microstructure of nano - y2o3 cobalt based alloy composite coating by laser cladding
钴基合金激光熔覆层的组织 |
| 2. | 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 |
| 3. | 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 |
| 4. | 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。 |
| 5. | 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。 |
| 6. | 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。 |
| 7. | 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。 |
| 8. | ( 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。 |
| 9. | 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 。 |
| 10. | 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。 |
