{"title":"用于氢脉泽腔的低膨胀材料的性能","authors":"E. Mattison, R. Vessot, S. Jacobs","doi":"10.1109/FREQ.1985.200821","DOIUrl":null,"url":null,"abstract":"We have measured thermal and mechanical properties of four low-expansion materials that are candidates for use in hydrogen maser resonant cavities: Cer-Vit@ C-l01 and C-126, ULE', and Zerodur@. Thermal expansivities were measured at room temperature and after heating the samples to 3OO0C and to 700°C. The approximate expansivities, (1/L) (dL/dT) , in units of 10-8 OC-1, are: Cer-Vit C126, -40; Cer-Vit C101, -13; Zerodur, -12 to -6; and ULE, +5. Zerodur's expansivity decreased in magnitude by 50% after heating to 7OO0C, while the expansivities of ULE and Cl01 remained substantially unchanged.","PeriodicalId":291824,"journal":{"name":"39th Annual Symposium on Frequency Control","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1985-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Properties of Low-Expansion Materials for Hydrogen Maser Cavities\",\"authors\":\"E. Mattison, R. Vessot, S. Jacobs\",\"doi\":\"10.1109/FREQ.1985.200821\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We have measured thermal and mechanical properties of four low-expansion materials that are candidates for use in hydrogen maser resonant cavities: Cer-Vit@ C-l01 and C-126, ULE', and Zerodur@. Thermal expansivities were measured at room temperature and after heating the samples to 3OO0C and to 700°C. The approximate expansivities, (1/L) (dL/dT) , in units of 10-8 OC-1, are: Cer-Vit C126, -40; Cer-Vit C101, -13; Zerodur, -12 to -6; and ULE, +5. Zerodur's expansivity decreased in magnitude by 50% after heating to 7OO0C, while the expansivities of ULE and Cl01 remained substantially unchanged.\",\"PeriodicalId\":291824,\"journal\":{\"name\":\"39th Annual Symposium on Frequency Control\",\"volume\":\"36 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1985-05-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"39th Annual Symposium on Frequency Control\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/FREQ.1985.200821\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"39th Annual Symposium on Frequency Control","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/FREQ.1985.200821","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Properties of Low-Expansion Materials for Hydrogen Maser Cavities
We have measured thermal and mechanical properties of four low-expansion materials that are candidates for use in hydrogen maser resonant cavities: Cer-Vit@ C-l01 and C-126, ULE', and Zerodur@. Thermal expansivities were measured at room temperature and after heating the samples to 3OO0C and to 700°C. The approximate expansivities, (1/L) (dL/dT) , in units of 10-8 OC-1, are: Cer-Vit C126, -40; Cer-Vit C101, -13; Zerodur, -12 to -6; and ULE, +5. Zerodur's expansivity decreased in magnitude by 50% after heating to 7OO0C, while the expansivities of ULE and Cl01 remained substantially unchanged.
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