Journal of The Less Common Metals最新文献

{"title":"Über die Möglichkeit einer Mischungslücke in dem Na-Ga binären System","authors":"P. Feschotte","doi":"10.1016/0022-5088(91)90344-4","DOIUrl":"https://doi.org/10.1016/0022-5088(91)90344-4","url":null,"abstract":"","PeriodicalId":17534,"journal":{"name":"Journal of The Less Common Metals","volume":"175 1","pages":"Pages L5-L6"},"PeriodicalIF":0.0,"publicationDate":"1991-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-5088(91)90344-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71731372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exchange interaction in rare-earth compounds of the type RCo4B","authors":"J.P. Liu,&nbsp;F.R. de Boer,&nbsp;K.H.J. Buschow","doi":"10.1016/0022-5088(91)90358-B","DOIUrl":"https://doi.org/10.1016/0022-5088(91)90358-B","url":null,"abstract":"<div><p>The field dependence (up to 35 T) at 4.2 K of the magnetization of several compounds of the type _{R_{1−<em>x</em>}Y_<em>x</em>Co₄B (<em>R</em> = <em>rare</em><em>earth</em>}) has been studied. The magnetic isotherms at 4.2 K are analysed with a mean-field model. The magnetic coupling constant <em>J</em>_<em>RCo</em> between the moments of the rare earth and cobalt in the Hamiltonian <em>H</em> = ∑_<em>RCo</em>2<em>J</em>_<em>RCo</em><em>S</em>_<em>R</em> · <em>S</em>_<em>co</em> are shown to be more reliable than the coupling constants derived from a mean field analysis of the Curie temperatures for these compounds.</p></div>","PeriodicalId":17534,"journal":{"name":"Journal of The Less Common Metals","volume":"175 1","pages":"Pages 137-141"},"PeriodicalIF":0.0,"publicationDate":"1991-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-5088(91)90358-B","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71731602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of adsorption and interfacial reactions induced by chromium and titanium on the wettability of vitreous carbon by NiPd brazing alloys","authors":"P. Kritsalis,&nbsp;L. Coudurier,&nbsp;C. Parayre,&nbsp;N. Eustathopoulos","doi":"10.1016/0022-5088(91)90346-6","DOIUrl":"https://doi.org/10.1016/0022-5088(91)90346-6","url":null,"abstract":"<div><p>The influence of additions of chromium, titanium and CuCr on the wettability of vitreous carbon by NiPd azeotropic alloys was studied. The work was carried out at 1523 K under high vacuum by the sessile drop technique. The morphological and chemical features of the metal-carbon interface were determined by profilometry, scanning electron microscopy and microprobe analysis. Chromium and titanium active solutes lead to a decrease of more than 100° in contact angle and an order of magnitude increase in work of adhesion. These effects result from the <em>in situ</em> modification of both the liquid and solid sides of the interface: the formation of an adsorption layer rich in active solute on the liquid side and a metallic-like carbide on the solid side of the interface.</p></div>","PeriodicalId":17534,"journal":{"name":"Journal of The Less Common Metals","volume":"175 1","pages":"Pages 13-27"},"PeriodicalIF":0.0,"publicationDate":"1991-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-5088(91)90346-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71731677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The isothermal section (500 °C) of the phase diagram of the ternary system GeHoSi","authors":"Y. Zhuang, Yiyou Nie, Junqin Li","doi":"10.1016/0022-5088(91)90276-A","DOIUrl":"https://doi.org/10.1016/0022-5088(91)90276-A","url":null,"abstract":"","PeriodicalId":17534,"journal":{"name":"Journal of The Less Common Metals","volume":"29 1","pages":"217-222"},"PeriodicalIF":0.0,"publicationDate":"1991-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76557764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mössbauer and magnetic properties study of Nd2Fe14C-type compounds","authors":"F. Xing, W. Ho, Chunshen Yang, F. S. Li","doi":"10.1016/0022-5088(91)90352-5","DOIUrl":"https://doi.org/10.1016/0022-5088(91)90352-5","url":null,"abstract":"","PeriodicalId":17534,"journal":{"name":"Journal of The Less Common Metals","volume":"6 1","pages":"91-96"},"PeriodicalIF":0.0,"publicationDate":"1991-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80236826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and hydriding properties of magnesium-containing hydrogen storage materials chemically deposited from a homogeneous phase","authors":"H. Imamura, Y. Usui, M. Takashima","doi":"10.1016/0022-5088(91)90362-8","DOIUrl":"https://doi.org/10.1016/0022-5088(91)90362-8","url":null,"abstract":"","PeriodicalId":17534,"journal":{"name":"Journal of The Less Common Metals","volume":"1 1","pages":"171-176"},"PeriodicalIF":0.0,"publicationDate":"1991-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76374817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Caractéristiques mécaniques et chimiques des fibres de carbone protégées par un revêtement de carbure formé par dépôt chimique réactif","authors":"H. Vincent, C. Vincent, M. Berthet, H. Mourichoux, J. Bouix","doi":"10.1016/0022-5088(91)90348-8","DOIUrl":"https://doi.org/10.1016/0022-5088(91)90348-8","url":null,"abstract":"","PeriodicalId":17534,"journal":{"name":"Journal of The Less Common Metals","volume":"4 1","pages":"37-58"},"PeriodicalIF":0.0,"publicationDate":"1991-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88565749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of cold deformation on the structure, texture and properties of yttrium high temperature superconducting powders and strips","authors":"V.F. Shamrai,&nbsp;A.F. Pimenov,&nbsp;Yu.V. Efimov,&nbsp;A.A. Babareko,&nbsp;F.R. Karelin,&nbsp;V.F. Choporov,&nbsp;T.M. Frolova,&nbsp;E.A. Myasnikova,&nbsp;A.M. Postnikov","doi":"10.1016/0022-5088(91)90347-7","DOIUrl":"https://doi.org/10.1016/0022-5088(91)90347-7","url":null,"abstract":"<div><p>Cold deformation of YBa₂Cu₃O_{7 − <em>x</em>} (phase 123, <em>T</em>_<em>c</em> = 88.5–92 K) powders and strips causes partial decomposition of the 123 phase, a reduction in the degree of orthorhombicity of the structure up to almost complete degradation, and a decrease in <em>T</em>_<em>c</em>. When they are deformed, yttrium high temperature superconductors acquire basal (001) [110] texture with high pole density (13–15 arbitrary units), low scattering angle (±6°–7° from the normal direction), and a weak preference for <em>a</em>, <em>b</em> or <em>a</em> + <em>b</em> in the rolling direction; traces of (139) orientations may also be found. This texture is known to be favourable for increasing <em>j</em>_<em>k</em>. The combined effect of cold deformation and a carbon-containing binder leads, however, to a complete loss of superconductivity at 77 K or above. Depending on the regime of subsequent annealing, the following effects may be observed: degradation of the orthorhombic structure with a decrease in <em>T</em>_<em>c</em>; restoration of the orthorhombic structure and <em>T</em>_<em>c</em> of the 123 phase with complete or substantial loss of basal-type texture; change in texture type or retention of the basal texture (<em>p</em>_{<em>α</em> = 0}⁽⁰⁰⁵⁾ = 6–7 arbitrary units) with restoration of the orthorhombic lattice and <em>T</em>_<em>c</em> of the 123 phase. The appearance of a set of orientations from (139) to (001) in the deformation texture is evidence for the process of recrystallization grain growth. This suggests the appearance of plastic deformation of the ceramics (most probably of the shear type). With long annealing and thermocycling, the basal texture changes in accordance with the theory of compromise recrystallization grain growth up to the restoration of basal texture.</p></div>","PeriodicalId":17534,"journal":{"name":"Journal of The Less Common Metals","volume":"175 1","pages":"Pages 29-36"},"PeriodicalIF":0.0,"publicationDate":"1991-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-5088(91)90347-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71731676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic properties and structural characterization of the solid solution Er2 − xYxBaNiO5 (0 ≤ x ≤ 2)","authors":"R. Sáez-Puche, J. M. Martín-Llorente, J. M. Coronado","doi":"10.1016/0022-5088(91)90357-A","DOIUrl":"https://doi.org/10.1016/0022-5088(91)90357-A","url":null,"abstract":"","PeriodicalId":17534,"journal":{"name":"Journal of The Less Common Metals","volume":"27 1","pages":"131-136"},"PeriodicalIF":0.0,"publicationDate":"1991-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75139179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal structure of the compound CeRh1 − xGe2 + x (x = 0.325)","authors":"B. I. Shapiev, O. Sologub, Jurij D. Seropegin, O. Bodak, P. Salamakha","doi":"10.1016/0022-5088(91)90343-3","DOIUrl":"https://doi.org/10.1016/0022-5088(91)90343-3","url":null,"abstract":"","PeriodicalId":17534,"journal":{"name":"Journal of The Less Common Metals","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1991-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75243177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}