Ultra precise thermal expansion measurements of partially stabilized zirconia gauge blocks with an interferometric dilatometer

被引：2
|
作者：
Okaji, M [1 ]
Yamada, N [1 ]
Moriyama, H [1 ]
机构：
[1] Natl Res Lab Metrol, Tsukuba, Ibaraki 3058563, Japan
来源：
RECENT DEVELOPMENTS IN OPTICAL GAUGE BLOCK METROLOGY | 1998年 / 3477卷
关键词：
gauge block; linear thermal expansion coefficient; interferometric dilatometer; optical heterodyne technique; ultra precise measurement; partially stabilized zirconia;
D O I：
10.1117/12.323117
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Linear thermal expansion coefficients (LTECs) of two kinds of partially stabilized zirconia (PSZ) gauge blocks (five in all) were measured in the range from -10 to 60 degrees C with an optical heterodyne interferometric dilatometer. The dilatometer provides an order of 1 x 10(-9) K-1 uncertainty and reproducibility in LTEC measurement. LTECs of (9.230 +/- 0.012) x 10(-6) K-1 were obtained for four 2%Al2O3-PSZ gauge blocks, and (9.383 +/- 0.001) x 10(-6) K-1 for one 99.9% PSZ gauge block. These differences are discussed, together with the compositions and production lots.
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页码：279 / 287
页数：9
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