کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1612695 | 1516307 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sinterability of the oxynitride LaTiO2N with perovskite-type structure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Sinterability of the oxynitride LaTiO2N with perovskite-type structure Sinterability of the oxynitride LaTiO2N with perovskite-type structure](/preview/png/1612695.png)
چکیده انگلیسی
Based on a thermal stability study, the sinterability of the oxynitride LaTiO2N was investigated by spark plasma sintering (SPS). The results show that LaTiO2N is thermodynamically unstable above ca. 400 °C in air and ca. 800 °C in argon. While it appears impossible to completely avoid decomposition during sintering, LaTiO2N ceramics with relative density of 74-94% and a residual LaTiO2N content of 57-90 wt% were prepared. By manipulating kinetics, a relative density of 94% was achieved at 1350 °C under an uniaxially applied pressure of 125 MPa. This density is higher than any other counterparts prepared by conventional sintering so far. SPS appears a feasible tool for manipulating the sintering kinetics. It enables the preparation of almost dense LaTiO2N bulks with adequate purity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 586, 15 February 2014, Pages 567-573
Journal: Journal of Alloys and Compounds - Volume 586, 15 February 2014, Pages 567-573
نویسندگان
Duan Li, Wenjie Li, Claudia Fasel, James Shen, Ralf Riedel,