{"title":"通过数字光处理和低温烧结技术制造的碳化硅陶瓷","authors":"","doi":"10.1016/j.ceramint.2024.07.076","DOIUrl":null,"url":null,"abstract":"<div><p><span>The rapid development of additive manufacturing<span> techniques enables the preparation of SiC<span> ceramics with complex configurations; however, the high sintering temperature<span> and defects-control are still great challenges during processing. Thus, SiC ceramics were prepared by digital light processing followed by liquid phase sintering using Al</span></span></span></span><sub>2</sub>O<sub>3</sub>–Y<sub>2</sub>O<sub>3</sub><span> additives in this study. The photopolymerization of the SiC slurry, microstructures and mechanical properties of the sintered ceramics were investigated. The Al</span><sub>2</sub>O<sub>3</sub>–Y<sub>2</sub>O<sub>3</sub><span> additives enhanced the curing ability of the photosensitive SiC slurries by reducing the absorbance and scattering of UV light. The liquid phase accelerated the densification of the ceramics by particles rearrangement and interfacial bonding. Thus, the flexural strength of the ceramics increased from 41.0 MPa to 62.8 MPa with sintering temperature increasing.</span></p></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":null,"pages":null},"PeriodicalIF":5.1000,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Silicon carbide ceramics manufactured by digital light processing and low temperature sintering\",\"authors\":\"\",\"doi\":\"10.1016/j.ceramint.2024.07.076\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>The rapid development of additive manufacturing<span> techniques enables the preparation of SiC<span> ceramics with complex configurations; however, the high sintering temperature<span> and defects-control are still great challenges during processing. Thus, SiC ceramics were prepared by digital light processing followed by liquid phase sintering using Al</span></span></span></span><sub>2</sub>O<sub>3</sub>–Y<sub>2</sub>O<sub>3</sub><span> additives in this study. The photopolymerization of the SiC slurry, microstructures and mechanical properties of the sintered ceramics were investigated. The Al</span><sub>2</sub>O<sub>3</sub>–Y<sub>2</sub>O<sub>3</sub><span> additives enhanced the curing ability of the photosensitive SiC slurries by reducing the absorbance and scattering of UV light. The liquid phase accelerated the densification of the ceramics by particles rearrangement and interfacial bonding. Thus, the flexural strength of the ceramics increased from 41.0 MPa to 62.8 MPa with sintering temperature increasing.</span></p></div>\",\"PeriodicalId\":267,\"journal\":{\"name\":\"Ceramics International\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.1000,\"publicationDate\":\"2024-07-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ceramics International\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0272884224029560\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ceramics International","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0272884224029560","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
摘要
增材制造技术的快速发展使复杂结构的碳化硅陶瓷的制备成为可能，然而，高烧结温度和缺陷控制仍然是加工过程中的巨大挑战。因此，本研究使用 Al2O3-Y2O3 添加剂，通过数字光处理和液相烧结制备 SiC 陶瓷。研究了 SiC 浆料的光聚合、烧结陶瓷的微观结构和机械性能。Al2O3-Y2O3 添加剂通过减少紫外线的吸收和散射，提高了光敏 SiC 泥浆的固化能力。液相通过颗粒重排和界面结合加速了陶瓷的致密化。因此，随着烧结温度的升高，陶瓷的抗弯强度从 41.0 兆帕增加到 62.8 兆帕。
Silicon carbide ceramics manufactured by digital light processing and low temperature sintering
The rapid development of additive manufacturing techniques enables the preparation of SiC ceramics with complex configurations; however, the high sintering temperature and defects-control are still great challenges during processing. Thus, SiC ceramics were prepared by digital light processing followed by liquid phase sintering using Al2O3–Y2O3 additives in this study. The photopolymerization of the SiC slurry, microstructures and mechanical properties of the sintered ceramics were investigated. The Al2O3–Y2O3 additives enhanced the curing ability of the photosensitive SiC slurries by reducing the absorbance and scattering of UV light. The liquid phase accelerated the densification of the ceramics by particles rearrangement and interfacial bonding. Thus, the flexural strength of the ceramics increased from 41.0 MPa to 62.8 MPa with sintering temperature increasing.
期刊介绍：
Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties.
Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour.
Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
