کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10707543 | 1023748 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structure and properties of CdTe ceramics produced through nanopowder compaction
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structure and properties of CdTe ceramics produced through nanopowder compaction Structure and properties of CdTe ceramics produced through nanopowder compaction](/preview/png/10707543.png)
چکیده انگلیسی
Bulk specimens of highly dense CdTe ceramics were fabricated through compaction of vapor-deposited nanopowder. The microstructure, texture and other physical properties of the compacted CdTe were studied. The specimens were found to consist of grains of a certain crystallographic orientation. A two-component texture composed of ã2 2 0ã axial and {0 0 1}ãh k 0ã components was observed. The experimental results give evidence that dynamic recrystallization occurs under compressive stress in the temperature range from 20 to 200 °C. The ceramic specimens show extremely high-specific electrical resistivity on the order of 1010 Ω cm. Their mechanical hardness is 1450 MPa, which is more that three times higher than the corresponding value of melt-grown CdTe. The compacted CdTe has rather high transmission in the wavelength range of 6-25 μm. These properties make this material interesting for the fabrication of infrared optical elements and for potential use as ionizing-radiation detectors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 285, Issue 3, 1 December 2005, Pages 339-344
Journal: Journal of Crystal Growth - Volume 285, Issue 3, 1 December 2005, Pages 339-344
نویسندگان
N.N. Kolesnikov, V.V. Kveder, E.B. Borisenko, D.N. Borisenko, B.A. Gnesin, R.B. James,