Translucent polycrystalline ceramic and method of manufacture.
Translucent polycrystalline ceramic and method of manufacture.
复制标题
半透明多晶陶瓷及其制造方法。
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
Hiroshi Yamamoto
中科院分区：
文献类型：
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作者：
S. Iio;T. Mitsuoka;Hiroshi Yamamoto
一种透光的半透明多晶氧化铝陶瓷材料，所述陶瓷包括晶体颗粒，其特征在于，所述晶体颗粒的平均刻面长度不大于要通过所述多晶陶瓷传输的光的最大波长，即780 nm；所定义的面的平均长度是形成出现在构成所述陶瓷材料的晶体颗粒的横截面上的多边形的边的长度的平均值，并且其中所述颗粒晶体的平均颗粒尺寸不大于1微米；晶态颗粒的平均长径比为1~1.5，还包括所述半透明多晶陶瓷材料为0.02~2摩尔%的金属氧化物，所述氧化物结合陶瓷材料内部的晶体颗粒，其中所述金属氧化物是选自元素周期表第IIIA和IVA族金属的一种或多种金属的氧化物，不包括钛。
A ceramic material of translucent polycrystalline alumina to transmit light therethrough, said ceramic comprising crystal particles, characterized in that the mean facet length of the crystal particles is not greater than the maximum wavelength of light, ie , 780 nm, to be transmitted via said polycrystalline ceramic; the average length of the defined faces as a mean value of the lengths of sides forming polygons that appear in cross sections of the crystal particles constituting the ceramic material being, and wherein the average particle size of the particles crystal is not greater than 1 micron; and the average aspect ratio of the crystalline particles is 1 to 1.5, further comprising said translucent polycrystalline ceramic material a metal oxide in an amount of 0.02 to 2 mol%, the oxide binding the crystal particles inside the ceramic material, wherein it said metal oxide is an oxide of one or more metals selected from the metals belonging to groups IIIA and IVA of the Periodic Table, excluding Ti.