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Preparation method of yttrium aluminum garnet (YAG)-based transparent ceramics in system taking Ca as auxiliary agent

A technology of transparent ceramics and sintering aids, applied in the field of preparation of Ca additive system YAG-based transparent ceramics

Inactive Publication Date: 2017-09-26
XUZHOU NORMAL UNIVERSITY
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Problems solved by technology

[0010] Aiming at the existing problems, the present invention provides a method for preparing YAG-based transparent ceramics by vacuum sintering method with a small amount of Ca as a single additive under the non-annealing mechanism, thereby solving the problems existing in the prior art

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  • Preparation method of yttrium aluminum garnet (YAG)-based transparent ceramics in system taking Ca as auxiliary agent
  • Preparation method of yttrium aluminum garnet (YAG)-based transparent ceramics in system taking Ca as auxiliary agent
  • Preparation method of yttrium aluminum garnet (YAG)-based transparent ceramics in system taking Ca as auxiliary agent

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Embodiment Construction

[0026] The present invention provides a non-annealing mechanism based on vacuum sintering of a small amount of Ca single sintering aid system to prepare yttrium aluminum garnet (Y 3 al 5 o 12 , YAG)-based transparent ceramics, using a small amount of Ca as a single sintering aid, using a single-step vacuum sintering method, without post-annealing, to prepare YAG transparent ceramics with good optical quality and fine grain size . Prepared transparent ceramic component should satisfy following (1) formula or (2) formula:

[0027] (Re x Y 1-x ) 3 al 5 o 12 (1)

[0028] Y 3 (Cr y al 1-y ) 5 o 12 (2)

[0029] In the formula, the value range of x is 0≤x≤0.5, the range of y is 0≤y≤0.05, Re is one of Ce, Nd, Yb, Er, Ho, Dy, Pr, Tm, Sm, Eu or Tb . The amount of Ca added is 0.005-0.8wt.% of the total mass of Y, Al, Cr or Y, Al, Re raw material powder. The line transmittance at 1064nm of the finally prepared YAG transparent ceramic is higher than 84.0%-84.5% (thicknes...

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Abstract

The invention provides a method for preparing yttrium aluminum garnet (Y3Al5O12, YAG)-based transparent ceramics by means of vacuum sintering based on a system taking a small amount of Ca as a single-sintering auxiliary agent. According to the method, the small amount of Ca is used as the single-sintering auxiliary agent, and a single-step vacuum sintering method is adopted, so that the YAG-based transparent ceramics having good optical quality and fine crystalline grain size can be prepared under the condition of not adding post annealing treatment.

Description

technical field [0001] The invention belongs to the field of advanced ceramics, and specifically relates to a method for preparing YAG-based transparent ceramics with a Ca additive system, and more specifically relates to a method for preparing yttrium aluminum garnet by vacuum sintering based on a small amount of Ca single sintering additive system under a non-annealing mechanism (Y 3 Al 5 o 12 , YAG)-based transparent ceramics, more precisely, to provide a method to prepare a single-step vacuum sintering method with a small amount of Ca as a single sintering aid without post-annealing treatment, with good optical quality and grain size A method for fine and uniform YAG-based transparent ceramics. Background technique [0002] With its advantages of high peak power, high efficiency, long life, safety and reliability, solid-state lasers have taken a leading position in the field of laser applications, and are widely used in the fields of national defense, industrial proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/44C04B35/505C04B35/64
CPCC04B35/44C04B35/505C04B35/64C04B2235/3229C04B2235/3241C04B2235/6583C04B2235/9653
Inventor 张乐周天元邵岑孙炳恒高光珍王骋陈浩
Owner XUZHOU NORMAL UNIVERSITY
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