3D printing of porous SiC ceramics added with SiO2 hollow microspheres

Sun, Xiaomei; Zeng, Tao; Zhou, Yikai; Zhang, Kun; Xu, Genqi; Wang, Xiaohong; Cheng, Su

doi:10.1016/j.ceramint.2020.06.047

Cited by 28 publications

(7 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They further investigated the high temperature mechanical properties of the SiC ceramic, and found it had excellent high temperature strength. More interestingly, Sun et al [51] used SiC ceramic powders as raw material, hollow SiO 2 ceramic microspheres as filler, Al 2 O 3 ceramic powders and kaolin as sintering aids, and E12 epoxy resin powders as adhesive, respectively. Then, they finally prepared a macromicro hierarchically porous SiC ceramic structure through SLS, as shown in Fig.…”

Section: Selective Laser Sintering (Sls)mentioning

confidence: 99%

Progress and challenges towards additive manufacturing of SiC ceramic

et al. 2021

View full text Add to dashboard Cite

Silicon carbide (SiC) ceramic and related materials are widely used in various military and engineering fields. The emergence of additive manufacturing (AM) technologies provides a new approach for the fabrication of SiC ceramic products. This article systematically reviews the additive manufacturing technologies of SiC ceramic developed in recent years, including Indirect Additive Manufacturing (Indirect AM) and Direct Additive Manufacturing (Direct AM) technologies. This review also summarizes the key scientific and technological challenges for the additive manufacturing of SiC ceramic, and also forecasts its possible future opportunities. This paper aims to provide a helpful guidance for the additive manufacturing of SiC ceramic and other structural ceramics.

show abstract

Section: Selective Laser Sintering (Sls)mentioning

confidence: 99%

Progress and challenges towards additive manufacturing of SiC ceramic

et al. 2021

View full text Add to dashboard Cite

show abstract

“…There is considerable amount of AlN and other nitrides, carbides in SAD, which endows them to be used as a pore‐forming agent 48 . In addition, as a solid waste, cenospheres with hollow microstructure and a large‐volume cavity have been employed as pore former 49,50 . Owing to their silicon‐aluminum‐based composition similar to SAD, they can form pores without introducing excess impurities unlike other pore‐forming agents 51,52 .…”

Section: Introductionmentioning

confidence: 99%

“…48 In addition, as a solid waste, cenospheres with hollow microstructure and a large-volume cavity have been employed as pore former. 49,50 Owing to their silicon-aluminum-based composition similar to SAD, they can form pores without introducing excess impurities unlike other pore-forming agents. 51,52 More importantly, another main component, metallic aluminum, could be oxidized to form Al 2 O 3 during elevated temperature, which will lead to volume expansion to compensate for the shrinkage caused by sintering, and ultimately produce a low sintering shrinkage effect.…”

Section: Introductionmentioning

confidence: 99%

Porous ceramics with near‐zero shrinkage and low thermal conductivity from hazardous secondary aluminum dross

Zhang

Shen

et al. 2022

J Am Ceram Soc

View full text Add to dashboard Cite

Herein, a simple, versatile, and low-cost approach has been proposed to realize the green utilization of secondary aluminum dross, the hazardous solid waste, namely directly sintering dry-pressed green bodies from secondary aluminum dross to fabricate porous ceramics according to high-temperature foaming process spontaneously without adding spare foaming agents. Aluminum nitride (AlN) in secondary aluminum dross was employed to realize high-temperature foaming due to its oxidation, which makes traditional AlN and salts removal process needless. Moreover, near-zero shrinkage or even expansion during sintering of porous ceramics have occurred because in-situ foaming process together with the oxidation of Al particles well offset the sintering shrinkage. After sintering at 1400 • C for 2 h, porous ceramics composed of α-Al 2 O 3 and spinel phases with open porosity of 37.91%, sintering expansion rate of 1.13%, flexural strength of 45.67 MPa, and thermal conductivity of 0.97 W/(m⋅K) have been prepared. Cenospheres as pore-forming agents have been added to further improve the porosity, and alumina-based porous ceramics with open porosity of 28.39%-43.20% and flexural strength of 15.80-52.48 MPa have been obtained. This effective solution for recycling secondary aluminum dross could supply high-performance porous ceramics, which is expected to be applied in the fields of light-weight structural components and thermal insulations.

show abstract

“…A special case of matrix materials can be open-cell foams made of polymer [ 38 , 39 , 40 , 41 , 42 , 43 , 44 ], metal [ 45 , 46 , 47 , 48 , 49 , 50 ], and ceramics [ 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 ]. Two types of ceramic foams are important: SiC—silicon carbide foam (SCF) [ 51 , 52 ] and SiOC silicon oxide carbon one [ 53 , 54 ].…”

Section: Introductionmentioning

confidence: 99%

“…The SiC has low thermal conductivity and thermal expansion coefficient [ 51 , 52 , 53 , 54 , 55 , 56 ]. Various methods are applied for manufacturing of SCFs [ 55 , 56 , 57 , 58 , 59 , 60 , 63 ]. They are enabling the fabrication of materials with different levels of open or closed porosity which strongly influence the final macroscopic thermo-mechanical features.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Compression of a SiC Foam

Postek

Sadowski

2022

Materials

View full text Add to dashboard Cite

Silicon carbide foam is a material that can be used as reinforcement of interpenetrated composites. This paper presents an analysis of such a foam subjected to low and fast compression. The analysis is performed using the peridynamics (PD) method. This approach allows for an evaluation of failure modes and such effects of microcracks nucleation, their growth, and, finally, fragmentation. Furthermore, the material appears to behave qualitatively and quantitatively differently while subjected to low- and high-speed steel piston movement. Under slow compression case, damage appears in the entire specimen, but the shape of the structure is not changing significantly, whereas during the fast compression the sample is dynamically fragmented.

show abstract

3D printing of porous SiC ceramics added with SiO2 hollow microspheres

Cited by 28 publications

References 32 publications

Progress and challenges towards additive manufacturing of SiC ceramic

Progress and challenges towards additive manufacturing of SiC ceramic

Porous ceramics with near‐zero shrinkage and low thermal conductivity from hazardous secondary aluminum dross

Dynamic Compression of a SiC Foam

Contact Info

Product

Resources

About