1) granular particle
粒状晶
1.
Evolution time calculation of dendrite to granular particle during continuous cooling and stirring process;
连续冷却和搅拌条件下树枝晶向粒状晶转变时间的估算
2) dendrite shape
晶粒形状
1.
A physical model and a mathematical model for the simplified dendrite shape are established in the paper, in which a shape function is presented to describe the dendrite shape contour.
基于简化的晶粒形状,采用坐标变换技术来描述过冷液相中晶粒的生长过程及其对周围节点的捕获过程。
2.
The physical model and mathematical model for the simplified dendrite shape were established, in which a shape function was presented to describe the dendrite shape contour.
提出一种新的模拟铝合金枝晶生长的随机性方法,建立了简化的枝晶形状的物理与数学模型,并提出了一种形状函数来描述晶粒的外部轮廓,基于简化的晶粒形状,采用坐标变换技术来描述过冷液相中晶粒的生长过程及其对周围节点的捕获过程。
3.
On the basis of the simplified grain shape, the physical model and mathematical model for the simplified dendrite shape were established.
基于简化的晶粒形状,建立了模拟晶粒生长形貌的二维数学物理模型。
4) plate-like grain
板状晶粒
1.
Based on classical theory of surface diffusion and evaporation-condensation, a fi- nite element program is developed to simulate the unstable shape evolution of plate-like grains.
基于物质表面扩散和蒸发-凝结的经典理论,对板状晶粒不稳定外形的演变过程进行了有限元模拟结果表明,热蚀沟角θ=0(无内晶界)时,板状晶粒将直接圆柱化;当内晶界存在时,存在一临界热蚀沟角θmin;当θ>θmin时,板状晶粒沿晶界分离。
6) bismuth-oxide-doped
棒状晶粒
补充资料:多晶莫来石晶须(纤维)
分子式:
CAS号:
性质:莫来石相为主晶相的多晶纤维。化学成分为Al2O3 72%~77%,SiO222%~17%,B2O3 3%~5%,P2O51.5%~3.0%。纤维直径2~7μm,纤维长度20~125μm。使用温度1350℃。多采用溶胶-凝胶法制造。主要用作补强填料,也可作为轻质、隔热保温材料使用。
CAS号:
性质:莫来石相为主晶相的多晶纤维。化学成分为Al2O3 72%~77%,SiO222%~17%,B2O3 3%~5%,P2O51.5%~3.0%。纤维直径2~7μm,纤维长度20~125μm。使用温度1350℃。多采用溶胶-凝胶法制造。主要用作补强填料,也可作为轻质、隔热保温材料使用。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条