August 21, 2025MetalsOpen Access

Effect of HfC Content on the Elevated-Temperature Ablation Behavior of W-HfC Composites

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W-10HfC displays superior ablation resistance, with a linear ablation rate of only 0.0175 mm/s.
Formation of a dense HfW2O8 oxide layer enhances thermal expansion properties, improving resistance.
Excessive HfC induces stratified oxide structures, leading to microcrack formation that degrades performance.
Optimization of HfC content is essential for designing effective W-HfC composites in high-temperature applications.

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Systematic study reveals how HfC concentration affects ablation resistance in W-HfC composites, suggesting optimal levels for performance.

Zheng et al. (2025) studied this question.

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Systematic study reveals how HfC concentration affects ablation resistance in W-HfC composites, suggesting optimal levels for performance.