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Medium-frequency induction sintering method for neodymium-doped yttrium aluminum garnet laser ceramic
The invention relates to a medium-frequency induction sintering method for neodymium-doped yttrium aluminum garnet laser ceramic and belongs to the technical field of laser ceramic preparation. In the prior art, a temperature field formed in a furnace chamber is not uniform, and the sintering is carried out according to a predetermined process curve without utilizing a real-time fine adjustment sintering process, so that the rate of finished products is decreased, the sintering process is complex, and the sintering time is long. According to the medium-frequency induction sintering method for the neodymium-doped yttrium aluminum garnet laser ceramic, a laser ceramic blank is sintered into a laser ceramic finished product at a high temperature. The medium-frequency induction sintering method is characterized by comprising the following steps: putting the laser ceramic blank into a metal crucible into a furnace chamber of a medium-frequency induction furnace; vacuumizing the furnace chamber; carrying out medium-frequency induction heating to increase the temperature to be 1350 DEG C at a temperature increase rate of 5DEG C/min-10DEG C/min, carrying out constant-temperature processing for 1-5 hours, then heating to 1750 DEG C at the temperature increase rate of 5DEG C/min-10DEG C/min, constant-temperature processing for 8-16 hours, then stopping heating, and naturally cooling to the room temperature, so as to obtain the finished neodymium-doped yttrium aluminum garnet laser ceramic.
Medium-frequency induction sintering method for neodymium-doped yttrium aluminum garnet laser ceramic
The invention relates to a medium-frequency induction sintering method for neodymium-doped yttrium aluminum garnet laser ceramic and belongs to the technical field of laser ceramic preparation. In the prior art, a temperature field formed in a furnace chamber is not uniform, and the sintering is carried out according to a predetermined process curve without utilizing a real-time fine adjustment sintering process, so that the rate of finished products is decreased, the sintering process is complex, and the sintering time is long. According to the medium-frequency induction sintering method for the neodymium-doped yttrium aluminum garnet laser ceramic, a laser ceramic blank is sintered into a laser ceramic finished product at a high temperature. The medium-frequency induction sintering method is characterized by comprising the following steps: putting the laser ceramic blank into a metal crucible into a furnace chamber of a medium-frequency induction furnace; vacuumizing the furnace chamber; carrying out medium-frequency induction heating to increase the temperature to be 1350 DEG C at a temperature increase rate of 5DEG C/min-10DEG C/min, carrying out constant-temperature processing for 1-5 hours, then heating to 1750 DEG C at the temperature increase rate of 5DEG C/min-10DEG C/min, constant-temperature processing for 8-16 hours, then stopping heating, and naturally cooling to the room temperature, so as to obtain the finished neodymium-doped yttrium aluminum garnet laser ceramic.
Medium-frequency induction sintering method for neodymium-doped yttrium aluminum garnet laser ceramic
ZENG FANMING (author) / LIN HAI (author) / LI CHUN (author) / LIU JINGHE (author) / ZHOU YANYAN (author) / LIU LINA (author) / SUN JING (author)
2015-12-30
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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