کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
815014 906285 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Substrate Temperature on CaHPO4 Coating on HT-C/C Composites Prepared by Ultrasonic Induction Heating Method
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک مواد
پیش نمایش صفحه اول مقاله
Effect of Substrate Temperature on CaHPO4 Coating on HT-C/C Composites Prepared by Ultrasonic Induction Heating Method
چکیده انگلیسی

CaHPO4 coatings were deposited on H2O2-treated carbon/carbon composites (HT-C/C) substrates at different substrate temperatures by a ultrasonic induction heating method. The microstructures of these coatings were characterized by SEM, XRD, FTIR and EDS, and the adhesion of them to the HT-C/C substrates was evaluated by a scratch test. Meantime, the deposition kinetics of the CaHPO4 coatings was analyzed by measuring their weights using an analytical balance. The results show that the CaHPO4 coatings have a Ca/P ratio of 1.2±0.05, and some carbonate ions are found in their lattice. These coatings show no obvious changes in the morphologies, but their compactness decreases with increasing the temperature. The adhesive strength of the coatings to HT-C/C increases but their cohesive strength decreases with increasing substrate temperature. The induction heating deposition process of these CaHPO4 coatings is controlled by surface chemical reaction and the deposition activation energy is 46.7 kJ/mol.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metal Materials and Engineering - Volume 43, Issue 7, July 2014, Pages 1594-1599