3D microstructure characterization of 2D Cf-ZrB2-SiC ultra-high temperature ceramic matrix composites using X-ray microscopy

Ranjan Mishra, Adarsha; Singh, Vajinder; Patel, Manish; Mitra, Rahul

doi:10.1016/j.ceramint.2023.11.183

Cited by 4 publications

(1 citation statement)

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“…Consequently, non-oxide ceramic materials find suitability in applications subjected to extreme conditions such as high temperatures, intense radiation, and high strain rates. Industries such as the petrochemical, mechanical manufacturing, nuclear, and semiconductor industry have extensively employed non-oxide ceramic materials, specifically carbides (e.g., SiC, B 4 C) [ 39 , 40 , 41 ], nitrides (e.g., Si 3 N 4 , BN) [ 42 , 43 , 44 ], and borides (e.g., ZrB 2 ) [ 45 , 46 , 47 ]. However, non-oxide ceramics, characterized by their darker coloration, exhibit a higher refractive index and absorbance.…”

Section: Introductionmentioning

confidence: 99%

How to Improve the Curing Ability during the Vat Photopolymerization 3D Printing of Non-Oxide Ceramics: A Review

Gao,

Chen,

Chen

et al. 2024

Materials

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Vat photopolymerization (VP), as an additive manufacturing process, has experienced significant growth due to its high manufacturing precision and excellent surface quality. This method enables the fabrication of intricate shapes and structures while mitigating the machining challenges associated with non-oxide ceramics, which are known for their high hardness and brittleness. Consequently, the VP process of non-oxide ceramics has emerged as a focal point in additive manufacturing research areas. However, the absorption, refraction, and reflection of ultraviolet light by non-oxide ceramic particles can impede light penetration, leading to reduced curing thickness and posing challenges to the VP process. To enhance the efficiency and success rate of this process, researchers have explored various aspects, including the parameters of VP equipment, the composition of non-oxide VP slurries, and the surface modification of non-oxide particles. Silicon carbide and silicon nitride are examples of non-oxide ceramic particles that have been successfully employed in VP process. Nonetheless, there remains a lack of systematic induction regarding the curing mechanisms and key influencing factors of the VP process in non-oxide ceramics. This review firstly describes the curing mechanism of the non-oxide ceramic VP process, which contains the chain initiation, chain polymerization, and chain termination processes of the photosensitive resin. After that, the impact of key factors on the curing process, such as the wavelength and power of incident light, particle size, volume fraction of ceramic particles, refractive indices of photosensitive resin and ceramic particles, incident light intensity, critical light intensity, and the reactivity of photosensitive resins, are systematically discussed. Finally, this review discusses future prospects and challenges in the non-oxide ceramic VP process. Its objective is to offer valuable insights and references for further research into non-oxide ceramic VP processes.

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