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1)  directional solidification texture
定向凝固织构
2)  orientated solidification for texture
织构定向凝固
3)  directionally solidified microstructure
定向凝固组织
1.
The directionally solidified microstructure is revealed.
在2000℃的熔体温度下,实现了Nb-Ti-Si基超高温合金的有坩埚整体定向凝固,并分析了合金定向凝固组织特征。
2.
The results revealed that when the melt superheat temperatureθ_s=1950℃,the directionally solidified microstructure is composed of straight primary Nb_(ss) dendrites and couple grown lamellar (Nb_(ss)+γ-(Nb,X)_5Si_3) eutectic colonies(petal-like) along the longitudinal axes of the specimens.
采用有坩埚整体定向凝固技术研究了铌硅化物基超高温合金在不同过热温度下的定向凝固组织和固/液界面形态演化。
4)  directional solidification
定向凝固
1.
The asymptotic analysis of interfacial stability with surface tension anisotropy for directional solidification of alloys;
各向异性作用下合金定向凝固界面稳定性的渐近分析
2.
Effect of Al-Cu alloys diameter on thermal gradient and primary dendrite arm spacing during directional solidification;
试样直径对Al-Cu合金定向凝固温度梯度和一次枝晶间距的影响
3.
Study of the TiNi shape memory alloy prepared through directional solidification;
定向凝固制备TiNi形状记忆合金的研究
5)  unidirectional solidification
定向凝固
1.
Effect of gas pressure on pore distribution of lotus-type porous magnesium fabricated by unidirectional solidification;
气压对定向凝固藕状多孔镁的气孔分布影响
2.
Relationship between primary dendrite arm spacing of Al-4.5%Cu alloy and withdrawal rate during unidirectional solidification;
定向凝固Al-4.5%Cu合金枝晶组织与抽拉速率的关系
3.
Fabrication of YBCO superconducting rods by unidirectional solidification;
定向凝固法制备YBCO超导棒材研究
6)  NDS
非定向凝固
1.
2-Dimensional Simulation on Grain Structures of Superalloy Turbine Blade in NDS Solidification;
非定向凝固高温合金叶片晶粒组织的二维模拟
2.
The computer simulation method of the formation of grain structures of superalloy turbine blade in NDS investment casting processes was discussed It includes physical model of formation of solidification grain structures, two dimensional and three dimensional cellular automata (CA) technique used in modelin
论述了近年来发展起来的非定向凝固高温合金叶片熔模铸造过程中晶粒组织形成的计算机模拟方法 ,包括凝固过程中晶粒组织形成的物理模型、模拟中所采用的二维和三维胞状自动机 (CA)技
补充资料:织构定向沉积
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性质:织构化技术的一种。使一些易于挥发的金属化合物在基片上沿热流方向沉积成具有一定取向的陶瓷薄膜的工艺。气相生长、蒸镀和溅射均可使沉积的陶瓷薄膜成为织构材料,如在一定的电场、磁场和气氛下进行沉积还可获得更佳的效果。溅射工艺获得的氧化锌陶瓷薄膜,取向度可达90%,其电、光和声的性能已接近氧化锌单晶层,是一种良好的声表面波材料。硫化镉、硫化锌、钛酸钡、Bi4Ti3O12、PZT,PLZT和Bil2GeO2O等材料的定向薄膜的很多物理性能已类似于单晶薄膜。

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