Fabrication of ZrB2-SiC ceramic composites by optimized gel-casting method

Hong, Wenhu; Hu, Ping; Zhang, Dongyang; Xie, Maosong; Yang, Yang; Du, Shanyi

doi:10.1016/j.ceramint.2017.12.227

Cited by 11 publications

(4 citation statements)

References 35 publications

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“…The main reason that the majority of functionally graded materials used in the biomedical industry are used for implants is that natural parts that these materials replace are functionally graded materials in nature. Many researches have been conducted to improve the properties of biocompatible material in the human body using FGMs [48,49]. They are now widely used in prosthetic devices and artificial teeth components because they give the medicinal components corrosion and abrasion resistance in one side and strength of bonding in the other side.…”

Section: Biomedical Cooilacilppamentioning

confidence: 99%

A Review on Functionally Graded Materials and Their Applications in the Field of Prosthetics

Saad¹

2022

ERJ. Engineering Research Journal

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Functionally graded materials (FGMs) are special types of advanced composites with peculiar features and advantages. The main characteristic of an FGM is the gradual variation in composition and microstructure across its dimensions, resulting in enhanced properties. FGMs are consisting of two or more materials in order to achieve the desired properties according to the application where an FGM is used. As a result FGMs are of great interest for numerous applications. This paper reviews various fabrication techniques, classification and its applications in the field of prosthetics.

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Section: Biomedical Cooilacilppamentioning

confidence: 99%

A Review on Functionally Graded Materials and Their Applications in the Field of Prosthetics

Saad¹

2022

ERJ. Engineering Research Journal

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“…Nowadays, according to the newly developed technology in the fabrication of ceramics and composites, many researchers have concentrated on the study of the process optimization for the development of the ceramic reliability, and have demonstrated that colloidal processing was one of the most promising ways to improve it [155][156][157][158][159]. This process, based on the combination of ceramic processing and polymer chemistry, includes the dispersion of the ceramic powders poured into the monomer solution and in situ polymerization in the non-porous mould [160]. Basically, in the gel casting process, ceramic powders and other materials are dispersed in an aqueous solution including a monomer, cross-linker, free radical initiator and catalyst to form stable slurry.…”

Section: Gel Casting Processmentioning

confidence: 99%

“…Biomaterials should simultaneously provide many qualifications and possess characteristics such as non-toxicity, corrosion resistance, thermal conductivity, strength, fatigue durability, biocompatibility and seldom aesthetics [238]. Several studies have been conducted to improve these properties of biocompatible material in the human body using FGMs [160,[239][240][241][242][243][244][245][246][247][248][249][250][251][252]. Xiong et al [253] have fabricated four types of FGM scaffolds with different structures prepared by selective laser melting (SLM) with Ti 6 Al 4 V as a building material for the load-bearing orthopaedic application.…”

Section: Medicinementioning

confidence: 99%

Functionally graded materials (FGMs): A review of classifications, fabrication methods and their applications

Mohammadi

Rajabi

Ghadiri

2021

PAC

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Functionally graded materials (FGMs) are new materials whose properties change gradually in respect to their dimensions. This group of materials shows a tremendous improvement of previously used composite materials. FGM consists of two or more materials whose combination enables the achievement of specified properties in accordance with the desired application. The article gives an overview of different classifications, various fabrication methods and applications of the FGMs. It could also provide insight and perspective for researchers, university students and research and development teams since it has brought together diverse aspects of FGMs. As mentioned in section two, we took all FGMs fabrication methods under consideration, giving the reader an insight into how to make a product while satisfying the conditions of financial and mechanical efficiency. The classification section specifically goes over structures, types of gradients, sizes/scales, state of matter and finishes with the manufacturing processes. Section two deep dives into the fabrication methods used in the FGMs, which are divided into three sub-sections, including gas-based, liquid-based and solid-based. Lastly, various applications of the FGMs in different fields and industries, namely aerospace, energy, medicine, military, manufacturing and eventually other applications, are demonstrated.

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“…Among the colloidal processing, the most suitable process is gel casting that enables the materials to achieve higher microstructural homogeneity and high strength in green and sintered parts with complex shapes. Gel casting is a generic method based on a combination of traditional ceramics forming and polymer chemistry, including the homogeneous dispersion of ceramic powders into dissolved colloidal solutions and then casting into a sealed mould with in situ polymerization to form a macromolecular gel network to hold the ceramic particles together [16,17]. However, the wet gelcasted green bodies were prone to shrink or crack owing to the non-uniform contraction in the process of removing the moisture [18].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties of ZrB2-SiC composites fabricated by the centrifugal gel casting

Chen

Zhang

et al. 2020

Preprint

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The high-performance and reliable ZrB2-SiC composites were fabricated by centrifugal gel casting and pressureless sintering. A well-dispersed ZrB2-SiC suspensions with up to 48 vol.% solid loading was achieved by adding 0.6 wt.% PAA dispersant and adjusting pH value to 11. The crack-free green ZrB2-SiC ceramic bodies with homogenous microstructure were prepared successfully by centrifugal gel casting with a relatively low monomer content of 3.5wt.% and centrifugal speed of 9000 r/min. After pressureless sintering at 2000 °C for 1 h, ZrB2-SiC composites with a relative density of 94.8%, a flexural strength of 394 ± 14 MPa and fracture toughness of 4.03 ± 0.10 MPa·m1/2 were achieved. This approach provided a promising colloidal processing to fabricate ceramic composites with reliable properties.

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Fabrication of ZrB2-SiC ceramic composites by optimized gel-casting method

Cited by 11 publications

References 35 publications

A Review on Functionally Graded Materials and Their Applications in the Field of Prosthetics

A Review on Functionally Graded Materials and Their Applications in the Field of Prosthetics

Functionally graded materials (FGMs): A review of classifications, fabrication methods and their applications

Microstructure and mechanical properties of ZrB2-SiC composites fabricated by the centrifugal gel casting

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