Mechanical properties of monolithic AIN and SiCw/AIN composites

Unni, C. K.; Gordon, D. E.

doi:10.1007/bf00356116

Cited by 18 publications

(6 citation statements)

References 10 publications

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“…Tensile strength measurements of ceramics typically provide greater accuracy than flexure tests, but are often disfavoured due to prohibitively higher costs [136]. Tensile (σ t ) and flexural (σ fl ) strengths can be related using Weibull scaling [164], where details of the dimensions of the flexural and tensile test specimens, but not the flaw size, are required [105]:…”

Section: Tensile Strengthmentioning

confidence: 99%

A review of the processing, composition, and temperature-dependent mechanical and thermal properties of dielectric technical ceramics

et al. 2011

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The current review uses the material requirements of a new space propulsion device, the Variable Specific Impulse Magnetoplasma Rocket (VASIMR ® ) as a basis for presenting the temperature dependent properties of a range of dielectric ceramics, but data presented could be used in the engineering design of any ceramic component with complementary material requirements. A material is required for the gas containment tube (GCT) of VASIMR ® to allow it to operate at higher power levels. The GCT's operating conditions place severe constraints on the choice of material. A dielectric is required with a high thermal conductivity, low dielectric loss factor, and high thermal shock resistance. There is a lack of a representative set of temperature-dependent material property data for materials considered for this application and these are required for accurate thermo-structural modelling. This modelling would facilitate the selection of an optimum material for this component. The goal of this paper is to determine the best material property data values for use in the materials selection and design of such components. A review of both experimentally and theoretically-determined temperature-dependent & room temperature properties of several materials has been undertaken. Data extracted are presented by property. Properties reviewed are density, Young's, bulk and shear moduli, Poisson's ratio, tensile, flexural and compressive strength, thermal conductivity, specific heat capacity, thermal expansion coefficient and the factors affecting maximum service temperature. Materials reviewed are alumina, aluminium nitride, beryllia, fused quartz, sialon and silicon nitride.

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Section: Tensile Strengthmentioning

confidence: 99%

A review of the processing, composition, and temperature-dependent mechanical and thermal properties of dielectric technical ceramics

et al. 2011

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“…1 An aluminum nitride (AlN)-silicon carbide (SiC) composite has been a promising material for hightemperature and electrical applications, because AlN possesses high thermal conductively, high electrical resistance and low thermal expansion, 2 -4 whereas SiC has excellent resistance to oxidation and corrosion 5,6 and greater hardness, toughness and creep compared with AlN. 7 Pyrolytic conversion of precursors involving inorganic and organometallic polymers provides a novel route to non-oxide ceramics and ceramic-based composites. 8 -11 This process can offer significant advantages for fabrications into ceramics and ceramic-based composites with desirable shapes, including coatings and fibers.…”

Section: Introductionmentioning

confidence: 99%

Pyrolytic conversion of an AlSiNC precursor prepared via hydrosilylation between [Me(H)SiNH]4 and [HAlN(allyl)]m[HAlN(ethyl)]n

Mori¹,

Sugahara²

2006

Appl. Organometal. Chem.

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“…Silicon carbide (SiC), another refractory ceramic, has higher hardness, toughness, and creep resistance relative to AlN-based ceramics. 5 Composites of these two ceramics have been the focus of numerous investigations, in part because they are reported to have attractive mechanical properties. 6 -8 Moreover, the formation of solid solutions between AlN and the 2H polytype of SiC has been extensively investigated.…”

Section: Introductionmentioning

confidence: 99%

Formation Mechanism of AlN–SiC Solid Solution by Combustion Nitridation in Si₃N₄–Si‐Al‐C System

Kata

Shirai

Ohyanagi

et al. 2001

Journal of the American Ceramic Society

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The synthesis of solid solutions of AlN-SiC was investigated through the combustion reaction between Si 3 N 4 , aluminum, and carbon powders and nitrogen gas at pressures ranging from 0.1 to 6.0 MPa. The combustion reaction was initiated locally and then the wave front propagated spontaneously, passing through the cylindrical bed containing the loose powder. In the presence of Si 3 N 4 as a reactant, it was feasible to synthesize solid solutions at an ambient pressure (0.1 MPa). The relationship between nitrogen pressure and full-width at half-maximum of the (110) peak of the product showed that lower pressures produced more-homogeneous solid solutions. Some aspects of formation of the AlN-SiC solid solutions were discussed with special emphasis on the influence of nitrogen pressure and reactant stoichiometry.

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Mechanical properties of monolithic AIN and SiCw/AIN composites

Cited by 18 publications

References 10 publications

A review of the processing, composition, and temperature-dependent mechanical and thermal properties of dielectric technical ceramics

A review of the processing, composition, and temperature-dependent mechanical and thermal properties of dielectric technical ceramics

Pyrolytic conversion of an AlSiNC precursor prepared via hydrosilylation between [Me(H)SiNH]4 and [HAlN(allyl)]m[HAlN(ethyl)]n

Formation Mechanism of AlN–SiC Solid Solution by Combustion Nitridation in Si₃N₄–Si‐Al‐C System

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Mechanical properties of monolithic AIN and SiCw/AIN composites

Cited by 18 publications

References 10 publications

A review of the processing, composition, and temperature-dependent mechanical and thermal properties of dielectric technical ceramics

A review of the processing, composition, and temperature-dependent mechanical and thermal properties of dielectric technical ceramics

Pyrolytic conversion of an AlSiNC precursor prepared via hydrosilylation between [Me(H)SiNH]4 and [HAlN(allyl)]m[HAlN(ethyl)]n

Formation Mechanism of AlN–SiC Solid Solution by Combustion Nitridation in Si3N4–Si‐Al‐C System

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Formation Mechanism of AlN–SiC Solid Solution by Combustion Nitridation in Si₃N₄–Si‐Al‐C System