Continuous Silicon Carbide Fiber of High Tensile Strength

Yajima, Seishi; Hayashi, J.; Omori, Mamoru

doi:10.1246/cl.1975.931

Cited by 558 publications

(262 citation statements)

References 3 publications

Supporting

Mentioning

254

Contrasting

Unclassified

Order By: Relevance

“…This method produces extremely high purity powders at a relatively low cost and is used in the manufacturing of parts for semiconductors. Regarding organic raw materials, the synthesis of SiC fibers from carbosilane by Yajima et al 39) ,40) is well known. It is a unique and excellent method developed in Japan, and this synthesis method has been further improved.…”

Section: Liquid-phase Raw Materials and Precursor Methodsmentioning

confidence: 99%

Silicon carbide powder and sintered materials

Tanaka

2011

J. Ceram. Soc. Japan

View full text Add to dashboard Cite

Silicon carbide (SiC) was first industrially synthesized in 1894 and has been used as refractories, abrasives and high temperature furnace parts. The basic fabrication and sintering technologies were almost established by about 1970. Recently, sintered SiC has become a key material as it has been widely used in advanced industries of semiconductors and high precision machines. New fabrication methods for modern SiC powders and sintering methods are being developed on the bases of traditional methods. In this review, the original studies and recent developments have been given maximum possible emphasis, and in particular, basic points of view are introduced.

show abstract

Section: Liquid-phase Raw Materials and Precursor Methodsmentioning

confidence: 99%

Silicon carbide powder and sintered materials

Tanaka

2011

J. Ceram. Soc. Japan

View full text Add to dashboard Cite

show abstract

“…The processing of porous ceramics using preceramic polymers offers many advantages compared to ceramic powders. These include (i) low processing temperatures or low energy consumption for the synthesis compared to high temperatures required for sintering of ceramic powders [13][14][15][16][17], (ii) no additives required for densification [1,4], (iii) a variety of low-cost plastic-forming techniques can be applied with easy control over rheological properties by modified molecular architecture; important plastic-forming techniques include injection molding, extrusion, resin transfer molding, melt spinning [4,9,15], (iv) machining before ceramization can be avoided, thereby reducing tool wear and brittle fracture [1,5,10], (v) easy handling before heat treatment, because preceramic polymers can effectively bind the parts at low temperatures [10], (vi) utilization of unique polymeric properties that cannot be found in ceramic powders, such as appreciable plasticity, in situ gas evolution ability, appreciable CO 2 solubility, and appreciable solubility of preceramic polymers in organic solvents [9,10,18,19], (vii) nanostructures (wires, belts, tubes, etc) can be created directly during the pyrolysis of catalyst-containing preceramic polymers [10,11], and (viii) ceramic products containing unique combination of polymer-like nanostructures with ceramic-like properties (hardness, creep resistance and oxidation resistance) can be obtained [6,9,10]. Hence, several polymers with different substituents were synthesized, blended and used as precursors for fabricating a variety of porous ceramics such as zirconia, alumina, silica, silicon carbide, silicon oxycarbide, mullite, cordierite, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Since the pioneering work on polycarbosilane by Yajima et al [13,14], many Si-based polymeric precursors such as polysiloxanes, polysilanes, polysilazanes, polycarbosilanes have been prepared to fabricate a range of ceramic compositions [22,23]. These polymers, upon controlled pyrolysis, yield ceramic residue through the elimination of organic moieties by breaking of C-H bonds and releasing H 2 , CH 4 or other volatile compounds [22,24,25].…”

Section: Introductionmentioning

confidence: 99%

Processing of polysiloxane-derived porous ceramics: a review

Kumar

Kim

2010

Science and Technology of Advanced Materials

112

View full text Add to dashboard Cite

Because of the unique combination of their attractive properties, porous ceramics are considered as candidate materials for several engineering applications. The production of porous ceramics from polysiloxane precursors offers advantages in terms of simple processing methodology, low processing cost, and easy control over porosity and other properties of the resultant ceramics. Therefore, considerable research has been conducted to produce various Si(O)C-based ceramics from polysiloxane precursors by employing different processing strategies. The complete potential of these materials can only be achieved when properties are tailored for a specific application, whereas the control over these properties is highly dependent on the processing route. This review deals with processing strategies of polysiloxane-derived porous ceramics. The essential features of processing strategies-replica, sacrificial template, direct foaming and reaction techniques-are explained and the available literature reports are thoroughly reviewed with particular regard to the critical issues that affect pore characteristics. A short note on the cross-linking methods of polysiloxanes is also provided. The potential of each processing strategy on porosity and strength of the resultant SiC or SiOC ceramics is outlined.

show abstract

“…An important key for the production of a polymer-derived SiC fiber is an ultra-fine microstructure, which allows high-tensile strength. 28) Their creep and thermal resistance are primarily determined by the stoichiometry and specifically the oxygen content. SiC fibers are the main focus in the thematic of polymer-derived ceramic fibers but the high cost of PCS caused by expensive raw materials, elaborate synthesis processes and low volume production, is clearly one of the limitations of SiC fibers.…”

Section: Sicn Ceramic Fibersmentioning

confidence: 99%

Polymer-derived ceramics route toward SiCN and SiBCN fibers: from chemistry of polycarbosilazanes to the design and characterization of ceramic fibers

Viard

Miele

Bernard

2016

J. Ceram. Soc. Japan

View full text Add to dashboard Cite

High-temperature ceramic materials gain a continuous growing interest due to the various properties they can offer. Among all their specific features, their outstanding thermal and mechanical stability attract much attention to save energy. In the category of ceramics, silicon-based non-oxide compositions display a great potential for many applications involving high temperatures, high stresses or harsh environments. Since the major binary silicon carbide and silicon nitride, which are currently used as highperformance ceramics, were discovered, the role of chemistry in the design of materials has become major. Its potential lies in the exploitation of new chemical systems and the development of new preparative routes. As a consequence, new ceramic properties can be envisioned. The polymer derived ceramic (PDC) route is a "ceramic through chemistry" concept which allows synthesizing new materials in terms of compositions and shapes difficult to tailor using more conventional approaches. This review highlights the works made in the last decades concerning the preparation of PDC fibers with a particular focus on amorphous SiCN and SiBCN networks using melt-spinning and electrospinning processes of preceramic polymers. One main emphasis of this review is set on addressing the intimate relationship between molecular structure/architecture of preceramic polymers, their spinning/ curing/pyrolysis behavior and the properties of the final fibers.

show abstract

Continuous Silicon Carbide Fiber of High Tensile Strength

Cited by 558 publications

References 3 publications

Silicon carbide powder and sintered materials

Silicon carbide powder and sintered materials

Processing of polysiloxane-derived porous ceramics: a review

Polymer-derived ceramics route toward SiCN and SiBCN fibers: from chemistry of polycarbosilazanes to the design and characterization of ceramic fibers

Contact Info

Product

Resources

About