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Method for preparing large-size YAG transparent ceramic through modified spontaneous solidification forming
The invention discloses a method for preparing large-size YAG (yttrium aluminum garnet) transparent ceramic by modified spontaneous solidification forming, which comprises the following steps: by taking high-purity alpha-Al2O3 powder and Y2O3 powder as raw materials and water-soluble epoxy resin ethylene glycol diglycidyl ether EGDGE as an auxiliary crosslinking curing agent, modifying a spontaneous solidification forming system, and preparing the YAG transparent ceramic by adopting a high-temperature solid-phase synthesis method. The gel curing capacity of the slurry is effectively enhanced, and the problems that the YAG biscuit is easy to deform and crack during drying and the like are solved. The YAG transparent ceramic disclosed by the invention is uniform in microstructure, high in density and good in curing performance and optical performance, and the linear transmittance at 1064nm is measured to be 83.8% through an ultraviolet, visible and near-infrared spectrophotometer. A new way is provided for preparation of large-size complex-structure YAG transparent ceramics, and a foundation is laid for research on subsequent in-situ curing forming preparation of laser ceramics.
本发明公开了一种改性自发凝固成型制备大尺寸YAG透明陶瓷的方法，以高纯α‑Al2O3粉末和Y2O3粉末为原料,水溶性环氧树脂乙二醇二缩水甘油醚EGDGE为辅助交联固化剂，对自发凝固成型体系进行改性,采用高温固相合成法制备YAG透明陶瓷，有效增强浆料的凝胶固化能力,解决了YAG素坯干燥易变形和易开裂等问题。本发明的YAG透明陶瓷显微结构均匀、致密度高，且具有良好的固化性能和光学性能，通过紫外可见近红外分光光度计测得在1064nm处直线透过率为83.8％。为大尺寸复杂结构YAG透明陶瓷的制备提供了新的途径,也为后续原位固化成型制备激光陶瓷的研究奠定了基础。
Method for preparing large-size YAG transparent ceramic through modified spontaneous solidification forming
The invention discloses a method for preparing large-size YAG (yttrium aluminum garnet) transparent ceramic by modified spontaneous solidification forming, which comprises the following steps: by taking high-purity alpha-Al2O3 powder and Y2O3 powder as raw materials and water-soluble epoxy resin ethylene glycol diglycidyl ether EGDGE as an auxiliary crosslinking curing agent, modifying a spontaneous solidification forming system, and preparing the YAG transparent ceramic by adopting a high-temperature solid-phase synthesis method. The gel curing capacity of the slurry is effectively enhanced, and the problems that the YAG biscuit is easy to deform and crack during drying and the like are solved. The YAG transparent ceramic disclosed by the invention is uniform in microstructure, high in density and good in curing performance and optical performance, and the linear transmittance at 1064nm is measured to be 83.8% through an ultraviolet, visible and near-infrared spectrophotometer. A new way is provided for preparation of large-size complex-structure YAG transparent ceramics, and a foundation is laid for research on subsequent in-situ curing forming preparation of laser ceramics.
本发明公开了一种改性自发凝固成型制备大尺寸YAG透明陶瓷的方法，以高纯α‑Al2O3粉末和Y2O3粉末为原料,水溶性环氧树脂乙二醇二缩水甘油醚EGDGE为辅助交联固化剂，对自发凝固成型体系进行改性,采用高温固相合成法制备YAG透明陶瓷，有效增强浆料的凝胶固化能力,解决了YAG素坯干燥易变形和易开裂等问题。本发明的YAG透明陶瓷显微结构均匀、致密度高，且具有良好的固化性能和光学性能，通过紫外可见近红外分光光度计测得在1064nm处直线透过率为83.8％。为大尺寸复杂结构YAG透明陶瓷的制备提供了新的途径,也为后续原位固化成型制备激光陶瓷的研究奠定了基础。
Method for preparing large-size YAG transparent ceramic through modified spontaneous solidification forming
一种改性自发凝固成型制备大尺寸YAG透明陶瓷的方法
FENG YINGJUN (author) / PENG JIANGLONG (author) / CHEN YUE (author) / QIN TIANYU (author) / LI PENGPENG (author)
2024-06-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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