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Journal of Inorganic Materials

Journal of Inorganic Materials >

2007 , Vol. 22 >Issue 2: 344 - 348

DOI: https://doi.org/10.3724/SP.J.1077.2007.00344

Research Paper

Temperature Field Design, Process Analysis and Control of Sapphire Crystals by SAPMAC Method

  • XU Cheng-Hai ,
  • HAN Jie-Cai ,
  • ZHANG Ming-Fu ,
  • MENG Song-He ,
  • ZUO Hong-Bo
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  • Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

Received date: 2006-05-08

  Revised date: 2006-07-10

  Online published: 2007-03-20

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Abstract

The transparent sapphire crystal of 240mm in diameter, 210mm in length and 27.5kg in weight was grown successfully along a axis by the SAPMAC method. The relationship between temperature field distribution, growing speed, cooling rate and the density of defects, crack of crystal was discussed theoretically. The optimized temperature field distribution and process control to grow large scale crystals by the SAPMAC method were designed. Large scale sapphire rod and plank window were manufactured with special equipments. The infrared transmittance property of a standard specimen was measured as well.

Key words： sapphire; SAPMAC method; temperature field design; process optimization

Cite this article

XU Cheng-Hai , HAN Jie-Cai , ZHANG Ming-Fu , MENG Song-He , ZUO Hong-Bo . Temperature Field Design, Process Analysis and Control of Sapphire Crystals by SAPMAC Method[J]. Journal of Inorganic Materials, 2007 , 22(2) : 344 -348 . DOI: 10.3724/SP.J.1077.2007.00344

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