{"title":"Evolution des dimensions des cristallites des phases initiale et finale au cours de la deshydratation mecanique: Cd(OH)2 →CdO + H2O","authors":"A. Nonat, J.C. Mutin","doi":"10.1016/0390-6035(82)90090-6","DOIUrl":null,"url":null,"abstract":"<div><p>The grinding under constant temperature and vapour pressure of Cd(OH)<sub>2</sub> brings about rapid dehydration into CdO.</p><p>The evolution v.s. grinding time of the half bredth of hydroxide and oxide X-ray diffraction lines shows three steps. The part of diminution in particle size or distortions of the structure but also of the mechanical dehydration in these modifications is discussed.</p><p>The X-ray line profiles Fourier analysis shows that (i) whatever temperature and vapour pressure imposed during the grinding, the particles sizes of the oxide product by mechanical dehydration is close to that of the oxide obtained by thermal dehydration under vacuum. (ii) The distortions of the structure don't depend on the dehydration process, they are similar in the two types of oxide but they are influenced by the vapour pressure.</p></div>","PeriodicalId":18221,"journal":{"name":"Materials Chemistry","volume":"7 4","pages":"Pages 479-498"},"PeriodicalIF":0.0000,"publicationDate":"1982-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0390-6035(82)90090-6","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0390603582900906","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
The grinding under constant temperature and vapour pressure of Cd(OH)2 brings about rapid dehydration into CdO.
The evolution v.s. grinding time of the half bredth of hydroxide and oxide X-ray diffraction lines shows three steps. The part of diminution in particle size or distortions of the structure but also of the mechanical dehydration in these modifications is discussed.
The X-ray line profiles Fourier analysis shows that (i) whatever temperature and vapour pressure imposed during the grinding, the particles sizes of the oxide product by mechanical dehydration is close to that of the oxide obtained by thermal dehydration under vacuum. (ii) The distortions of the structure don't depend on the dehydration process, they are similar in the two types of oxide but they are influenced by the vapour pressure.
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