Abrasion-resistant CMAS glass-ceramic coatings incorporated with B₄C particles

ABSTRACT

One of the most significant mechanical characteristics of glass-ceramic coatings (GCCS) is abrasion resistance, which is particularly pertinent when contamination from the coated metallic surface is not desired. The influence of incorporating boron carbide (B₄C) as a hard particle into the CaO–MgO–Al₂O₃–SiO₂ GCC on the abrasion resistance was examined in this study. A PEI Abraser was used to evaluate the abrasion resistance over 5000 cycles, with mass loss recorded every 1000 cycles. Mass loss following the abrasion test was observed to decrease when the amount of added B₄C was increased, indicating that the abrasion resistance was enhanced by B₄C addition. The addition of 16 wt-% B₄C has had the strongest interface among the matrix/B₄C particles, resulting in higher abrasion resistance due to reduced crack formation and porosity, and yielded a decrease in mass loss of about 54%, colour change of <2 in terms of ΔE and gloss change about 40%.

KEYWORDS:

• CMAS
• diopside
• glass-ceramic
• coating
• abrasion resistance
• boron carbide

Acknowledgements

Author contribution: Nurullah Copoglu: Research, Investigation, Conduction of Experiments, Methodology, Evaluation, Writing. Bugra Cicek: Supervision, Data Curation, Project Administration. Oguz Karaahmet: Evaluation and Discussion of Results, Writing and Editing.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability

The data that support the findings of this study are available on request from the corresponding author, Nurullah Copoglu.

Additional information

Funding

This work was supported by TUBITAK under the 1505-University-Industry Collaboration Grant Program [grant number 5190063]. The funding organization had no role in study design; in the collection, analysis, and interpretation of data; in the writing of the report; and in the decision to submit the article for publication.