PURPOSE:To improve the precision in detecting an indicated temp. by using the unsintered formed body of the ceramic Al2O3 having a specified content of SiO2 as the formed body by detecting the heat history in the sintering of ceramic, etc. CONSTITUTION:This formed body 10 for detecting a heat history contains 99.7 wt.% Al2O3 and 0.2 wt.% SiO2 and is obtained by press forming, and the grain diameter of the raw powder, green density of the formed body, etc., are strictly controlled. The sintering temp, is changed under given conditions, the size of the sintered formed body 10 is measured, and the relation between the size and sintering temp. is prepared as a conversion table. When a formed body is sintered under different conditions, the formed body 10 is sintered along with a body to be sintered, the size of the sintered body is measured, and the indicated temp. is obtained from the table.
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机译：目的：提高检测指示温度的精度。通过检测陶瓷烧结等中的热历史，通过使用具有特定SiO 2含量的陶瓷Al 2 O 3的未烧结成形体作为成形体。组成：用于检测热历史的成形体10包含> 99.7 wt。％通过压制成形获得Al 2 O 3和＜0.2wt。％的SiO 2，并且严格控制原料粉末的粒径，成型体的生坯密度等。在给定条件下改变烧结温度，测量烧结成型体10的尺寸，并且尺寸与烧结温度之间的关系。准备作为转换表。当在不同条件下烧结成型体时，成型体10与待烧结体一起被烧结，测量烧结体的尺寸，并指示温度。从表中获得。
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