Zirconium-doped yttria base transparent ceramic and preparation method thereof

A technology of transparent ceramics and zirconium yttrium oxide, which is applied in the field of zirconium-doped yttrium oxide-based transparent ceramics and its preparation, can solve the problems of easily introducing more impurities, affecting the transparency of ceramics, and reducing the sintering temperature, so as to prevent the abnormal growth of crystal grains , Good for transparency, and the effect of promoting sintering

Inactive Publication Date: 2010-03-10
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

As can be seen from the above, foreign preparations of Y 2 o 3 Most transparent ceramics use radioactive or toxic ThO 2 Or BeO as an additive to reduce the sintering temperature, which brings many difficulties to the preparation; domestically, the chemical co-precipitation method is mainly used to prepare Y 2 o 3 Powder, and then sintered ceramics, because the preparation process is exposed to the air for a long time, it is easy to introduce more impurities, which will affect the transparency of the ceramics

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  • Zirconium-doped yttria base transparent ceramic and preparation method thereof
  • Zirconium-doped yttria base transparent ceramic and preparation method thereof

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0021] The following table 1 lists the ceramic molecular formulas of 12 examples of the present invention and the specific elements of Re, the values ​​of x, y, sintering temperature and holding time.

[0022] The preparation method of zirconium-doped yttrium oxide-based transparent ceramics of the present invention comprises the following steps:

[0023] ① Use Y with a purity greater than 99.99% 2 o 3 , ZrO 2 and rare earth oxide powder as raw materials, after selecting x and y in the table, according to the chemical structural formula (Y 1-x-y Re x Zr y ) 2 o 3 Configure the powder, ball mill the above powder with absolute ethanol as the medium, and mix evenly;

[0024] ② After drying, without adding any binder, under a pressure of 10-30MPa, press it into a cerami...

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Abstract

The invention relates to zirconium-doped yttria base transparent ceramic and a preparation method thereof. The structural formula of the ceramic is (Y(1-x-y)RexZry)2O3, wherein Re is a rare earth element selected from Yb, Nd, Tm, Ho, Ce, Er, Pr and Eu, or double-elements of Yb doped with Ho, Ce, Er, Pr and Eu; x is more than or equal to 0.00 and is less than or equal to 0.10, and y is more than orequal to 0.001 and is less than or equal to 0.05. The zirconium-doped yttria base transparent ceramic prepared by the method has higher transparency and compactness.

Description

technical field [0001] The invention relates to a transparent ceramic, in particular to a zirconium-doped yttrium oxide-based transparent ceramic and a preparation method thereof. Background technique [0002] Yttrium oxide (Y 2 o 3 ) belongs to the cubic crystal system, has the characteristics of good stability, wide optically transparent area, and high thermal conductivity, and has long been considered as an excellent solid-state laser matrix material. Added Nd in recent years 3+ 、Eu 3+ , Yb 3+ Y such as rare earth elements 2 o 3 Transparent ceramics have become a research hotspot of working materials for solid-state lasers. However, due to its melting point as high as 2430 °C and a phase transition around 2280 °C accompanied by a volume change, single crystal growth is difficult. Preparation of transparent Y by ceramic technology 2 o 3 Ceramics are not only easy to prepare, low in cost, and can produce large-scale products, but also can achieve high-concentratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/505C04B35/622
Inventor 侯肖瑞周圣明李文杰林辉滕浩
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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