Author: P. J. Cote
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Anomalous large diamagnetism and large positive magnetism have recently been reported in pressure quenced CdS polycrystalline samples by Homan and MacCrone. These effects were shown to be sample material source dependent, and as a first step toward characterizing these samples, we compared the thermal and structural properties of various CdS samples before and after pressurization. Samples containing up to 60 wt % C1 were prepared by precipitation from a chloride containing aqueous bath. We find that (i) C1 impurities are probably present in the form of a complex which can decompose on heating to CdS + CdC12, (ii) melting of a portion of the samples containing high levels of C1 occurs at 535 C and is attributed to the eutectic temperature of the CdS + CdC12 mixture, and (iii) heating beyond 535 C produces complete volatization of the CdC12 component. The results on samples prepared by mixing of CdS and CdC12. HxO were examined and found to have similar thermal behavior. The cadmium sulfide used in the previous magnetization study was examined and, based on the similarities in the thermal and structural properties, we conclude that the samples which exhibit the anomalous magnet effects were also prepared by precipitation. In agreement with earlier studies, metastable phases are observed after various pressurizations to above 4.0 GPa.
Thermal and Structural Analysis of the Effects of Chlorine Impurities on Pressurized Cadmium Sulfide
Author: P. J. Cote
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Anomalous large diamagnetism and large positive magnetism have recently been reported in pressure quenced CdS polycrystalline samples by Homan and MacCrone. These effects were shown to be sample material source dependent, and as a first step toward characterizing these samples, we compared the thermal and structural properties of various CdS samples before and after pressurization. Samples containing up to 60 wt % C1 were prepared by precipitation from a chloride containing aqueous bath. We find that (i) C1 impurities are probably present in the form of a complex which can decompose on heating to CdS + CdC12, (ii) melting of a portion of the samples containing high levels of C1 occurs at 535 C and is attributed to the eutectic temperature of the CdS + CdC12 mixture, and (iii) heating beyond 535 C produces complete volatization of the CdC12 component. The results on samples prepared by mixing of CdS and CdC12. HxO were examined and found to have similar thermal behavior. The cadmium sulfide used in the previous magnetization study was examined and, based on the similarities in the thermal and structural properties, we conclude that the samples which exhibit the anomalous magnet effects were also prepared by precipitation. In agreement with earlier studies, metastable phases are observed after various pressurizations to above 4.0 GPa.
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Anomalous large diamagnetism and large positive magnetism have recently been reported in pressure quenced CdS polycrystalline samples by Homan and MacCrone. These effects were shown to be sample material source dependent, and as a first step toward characterizing these samples, we compared the thermal and structural properties of various CdS samples before and after pressurization. Samples containing up to 60 wt % C1 were prepared by precipitation from a chloride containing aqueous bath. We find that (i) C1 impurities are probably present in the form of a complex which can decompose on heating to CdS + CdC12, (ii) melting of a portion of the samples containing high levels of C1 occurs at 535 C and is attributed to the eutectic temperature of the CdS + CdC12 mixture, and (iii) heating beyond 535 C produces complete volatization of the CdC12 component. The results on samples prepared by mixing of CdS and CdC12. HxO were examined and found to have similar thermal behavior. The cadmium sulfide used in the previous magnetization study was examined and, based on the similarities in the thermal and structural properties, we conclude that the samples which exhibit the anomalous magnet effects were also prepared by precipitation. In agreement with earlier studies, metastable phases are observed after various pressurizations to above 4.0 GPa.
Compounds and Alloys Under High Pressure
Author: E.Yu Tonkov
Publisher: Taylor & Francis
ISBN: 1351459104
Category : Technology & Engineering
Languages : en
Pages : 588
Book Description
This is the first book to classify and systematize the available data on the behavior of binary alloys under high pressure. Despite the fact that there is a strong correlation between temperature-composition (T-C) phase diagrams at normal pressure and three- dimensional temperature-composition-pressure (T-C-P) diagrams, many material scientists seldom refer to the (T-C-P) diagrams, just as many high pressure researchers often ignore the data obtained at normal pressure. This book aims to bridge the gap between data obtained at high pressure and that obtained at normal pressure. The most recent research covers not only elements and stoichiometric compounds, but also binary, ternary, and multicomponent alloys, and so this book covers an extended range of substances. The properties of 890 binary systems and a further 1153 pseudobinary and ternary systems are summarized, and accompanied by an extensive bibliography. The data includes information on the solubility of components in solid solutions, melting, and first- and second-order phase transformations in alloys and stoichiometric compounds.
Publisher: Taylor & Francis
ISBN: 1351459104
Category : Technology & Engineering
Languages : en
Pages : 588
Book Description
This is the first book to classify and systematize the available data on the behavior of binary alloys under high pressure. Despite the fact that there is a strong correlation between temperature-composition (T-C) phase diagrams at normal pressure and three- dimensional temperature-composition-pressure (T-C-P) diagrams, many material scientists seldom refer to the (T-C-P) diagrams, just as many high pressure researchers often ignore the data obtained at normal pressure. This book aims to bridge the gap between data obtained at high pressure and that obtained at normal pressure. The most recent research covers not only elements and stoichiometric compounds, but also binary, ternary, and multicomponent alloys, and so this book covers an extended range of substances. The properties of 890 binary systems and a further 1153 pseudobinary and ternary systems are summarized, and accompanied by an extensive bibliography. The data includes information on the solubility of components in solid solutions, melting, and first- and second-order phase transformations in alloys and stoichiometric compounds.
Technical Abstract Bulletin
Author: Defense Documentation Center (U.S.)
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1032
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1032
Book Description
Physics Briefs
Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 864
Book Description
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 864
Book Description
Government Reports Annual Index
Author:
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1192
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1192
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Bibliography on High Pressure Research
Author:
Publisher:
ISBN:
Category : High pressure (Science)
Languages : en
Pages : 500
Book Description
Publisher:
ISBN:
Category : High pressure (Science)
Languages : en
Pages : 500
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 836
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 836
Book Description
Nuclear Science Abstracts
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1142
Book Description
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1142
Book Description
INIS Atomindex
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 640
Book Description
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 640
Book Description
Government Reports Announcements & Index
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 974
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 974
Book Description