کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7887064 | 1509787 | 2018 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural transformations of boron trioxide under high pressure and high temperature
ترجمه فارسی عنوان
تغییرات ساختاری تری اکسید بور با فشار بالا و دمای بالا
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
A systematic study of boron trioxide under high pressure and high temperature (HPHT) was conducted using a Chinese multi-anvil high-pressure apparatus (CHPA). The HPHT phase diagram was determined using X-ray diffraction measurements. Under high pressure (3.6-5.5â¯GPa) and low temperature (below 450â¯Â°C), the boron trioxide grains were reduced to the nanometer size and the hardness reaches to 13.9â¯GPa (5.5â¯GPa and 450â¯Â°C). The boroxol rings were produced only in the glass phase that was transformed from the α-B2O3 phase under HPHT. And the formation mechanism of boroxol rings was discussed according to Raman spectrum and crystal structure of α-B2O3 and β-B2O3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 11, 1 August 2018, Pages 12491-12495
Journal: Ceramics International - Volume 44, Issue 11, 1 August 2018, Pages 12491-12495
نویسندگان
Dongliang Chu, Hongan Ma, Jian Wang, Lixue Chen, Xiaopeng Jia,