One-pot low-temperature preparation of thermo-responsive self-ceramifiable glass fiber insulation tiles with exceptional mechanical and ablative properties

One-pot low-temperature preparation of thermo-responsive self-ceramifiable glass fiber insulation tiles with exceptional mechanical and ablative properties

Ceramic fiber rigid insulation tiles (CFRITs) provide a feasible solution for thermal protection of aerospace vehicles in extreme environments. However, traditional CFRITs’ high forming temperature and non-ablative property limit their applications. The study first introduces a novel thermo-responsi...

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Bibliographic Details
Main Authors: Fengchun Ji, Zhihang Peng, Xin Yang, Jian Feng, Yang Xiang, Zeyu Liu
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Journal of Materials Research and Technology
Subjects:
Ceramicization
Insulation tiles
Glass fiber
Thermo-responsive
Ablative property
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785425001784
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Summary:Ceramic fiber rigid insulation tiles (CFRITs) provide a feasible solution for thermal protection of aerospace vehicles in extreme environments. However, traditional CFRITs’ high forming temperature and non-ablative property limit their applications. The study first introduces a novel thermo-responsive self-ceramifiable glass fiber rigid insulation tile (GFRIT) characterized by low forming temperature (150 °C), low density (0.435 g/cm3), high compressive strength (1.58 MPa), and low thermal conductivity (0.0553 W/(m·K)) in normal circumstances. Interestingly, it can spontaneously transform into high-strength semi-crystalline ceramics at elevated temperatures. The self-ceramization mechanism of GFRIT is elaborated in considerable detail. The 20 mm thick sample shows low backside temperature only 216 °C, solid overall structure, and near-zero ablation after continuous burning at 1300 °C for 600 s. The detailed illustration of gradient inter-coupling effects among various thermal protection mechanisms is provided. The self-ceramifiable GFRIT offers a significant idea for developing thermal protection materials (TPMs) with processability, toughness, high load-carrying capacity and efficient insulation in extreme conditions.
ISSN:2238-7854

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