| 专利名称： | Negative thermal expansion glass ceramic |
| 公开（告）号： | |
| 公开（公告）日： | 2006-12-19 00:00:00 |
| 申请（专利）号： | US20030455358（ USRE39437E） |
| 申请日： | 2003-09-03 00:00:00 |
| 发明（设计）人： | OHARA KK (JP) |
| (申请)专利权（人）： | YAMAGUCHI AYAKO (JP);GOTO NAOYUKI (JP) |
| 内容： | A negative thermal expansion glass ceramic having a negative coefficient of thermal expansion, which is a sufficiently large absolute value in a temperature range of -40 DEG C. to +160 DEG C. and a method for producing the same are provided. The negative thermal expansion glass ceramic has a coefficient of thermal expansion of -25 to -100x10-7/ DEG C. in the temperature range of -40 DEG C. to +160 DEG C., and comprises main crystalline phases which are one or more types selected from a group consisting of beta-eucryptite solid solution (beta-Li2O.Al2O3.2SiO2 solid solution), beta-eucryptite (beta-Li2O.Al2O3.2SiO2), beta-quartz solid solution (beta-SiO2) solid solution), and beta-quartz (beta-SiO2), wherein a total amount of crystals of the main crystalline phases can be 70 to 100% in mass percent. |
发布日期：2007-07-13 11:08:00