کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1483157 | 1645410 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strain-eliminating chemical bonding self-organizations within intermediate phase (IP) windows in chalcogenide, oxide and nitride non-crystalline bulk glasses and deposited thin film binary, ternary and quaternary alloys
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کلمات کلیدی
Borosilicates64.60.ah81.05.Ge61.43.Dq - 61.43 دقیقهStructural relaxation - آرام سازی ساختاریGlass transition - انتقال شیشهPercolation - تراوش، پرکولاسیونAlkali silicates - سیلیکات قلیاییOxide glasses - عینک اکسیدMedium-range order - مرتبه متوسطMechanical, stress relaxation - مکانیسم، آرامش استرسAmorphous semiconductors - نیمه هادی آمورفChalcogenides - کلوکوژنزها
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Transitions into, and out of intermediate phases (IPs) with minimal strain have been identified to date by Boolchand and co-workers, in bulk glasses, primarily by the extraordinary low values of the change in enthalpy, ÎHnr, associated with non-reversible heat flow, and by Lucovsky and coworkers in deposited thin films, and at dielectric-semiconductor interfaces by combining spectrographic characterizations, primarily synchrotron X-ray absorption and X-ray photoemission, and electrical measurements. This paper emphasizes chemical bonding self-organizations that minimize macroscopic strain within the IP windows, and identifies for the first time the necessary and sufficient conditions for IP windows to open, and to close, as a function of changes in the alloy composition. Percolation theory, and in particular competitive and synergistic double percolation provide a quantification of IP window first and second transition compositions that account for many of the experimentally determined IP window threshold transitions and IP window widths identified to date.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 355, Issues 37â42, 1 October 2009, Pages 1786-1791
Journal: Journal of Non-Crystalline Solids - Volume 355, Issues 37â42, 1 October 2009, Pages 1786-1791
نویسندگان
Gerald Lucovsky, Jim C. Phillips,