crystallographic orientation

Single crystalline Cu and α-Al2O3(sapphire) with different crystallographic orientation relationships at the interface were diffusion-welded in vacuum with and without a thin film Nb intelayer Effects of the orientation relationship at the interface on the fracture energy of Cu/Al2O3, and Cu/Nb/Al2O3, diffusion-bonded joints were studied.

以单晶α-Al2O3陶瓷（蓝宝石）和单晶Cu为母材，采用真空扩散焊接获得具有两种不同的界面晶体位向关系的Cu/Al2O3扩散焊接头以及带Nb膜中间层的Cu/Nb/Al2O3扩散焊接头，研究了界面晶体位向关系对接头断裂能量的影响。

Automatic calculations on the crystal orientation and angles needed for directional cutting on the samples can be made through the application of the electronic spreadsheets.

根据枝晶优先生长方向与磨面之间的几何关系 ,导出了铸造合金试样任意三个相交磨面的晶面指数算式 ,并创建了两个含有不同算式的电子表格 ,分别可实现晶体位向及定向切割所需夹角的自动计算 ,使晶体位向的测算比常用的 X射线 Laue背射法简单、代价低、效率高。