کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10155370 | 1666349 | 2018 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and properties of TaSi2-MoSi2-ZrO2-borosilicate glass coating on porous SiCO ceramic composites for thermal protection
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A TaSi2-MoSi2-ZrO2-borosilicate glass (TMZG) coating was prepared by a slurry method on a carbon fibre-reinforced porous silicon oxycarbide (SiCO) ceramic composite for thermal protection. The coating was well adhered to the substrate and showed a uniform thickness of approximately 375â¯Âµm. After thermal cycling from 1873â¯K to room temperature six times (total oxidation time of 180â¯min), the shape and dimension of the TMZG remain almost unchanged with no cracking or peeling of the coating surface. The TMZG-coated sample exhibits good oxidation resistance because of a molten SiO2 film with ZrSiO4 particles distributed on the outer layer of the coating. After ablation testing under an oxyacetylene flame at 1927â¯K for 90â¯s, the linear ablation rate of the TMZG coated sample are 8.33â¯Ãâ¯10â4 mm/s. The whole coating retains integrity, preventing substrate ablation during the test. The TMZG coating with excellent temperature resistance shows broad applicability in thermal insulation materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 16, November 2018, Pages 19143-19150
Journal: Ceramics International - Volume 44, Issue 16, November 2018, Pages 19143-19150
نویسندگان
Xiafei Li, Junzong Feng, Yonggang Jiang, Hao Lin, Jian Feng,