4.5 Article

Torsional Shear Strength of Silicon Carbide Components Pressurelessly Joined by a Glass-Ceramic

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Publisher

WILEY
DOI: 10.1111/j.1744-7402.2012.02775.x

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Funding

  1. FEMAS Integrated Project
  2. Bilateral Project Japan-Italy
  3. Italian Foreign Ministry (Progetti di Grande Rilevanza Nazionale)
  4. US-Japan TITAN

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Silicon carbide (SiC) samples have been joined by a pressureless slurry based method. The CaOAl2O3 (CA) glass-ceramic joining material has been characterized in term of crystalline phases and thermal and mechanical properties. A torsion test based on miniaturized hourglass shaped specimens has been used as pure shear strength test method for joined ceramic samples. Torsion results are compared to those obtained by a single lap offset (SLO) test in compression on the same joined materials. Pure shear strength of 104 +/- 25 MPa has been measured by torsion test, whereas single lap offset gave 36 +/- 8 MPa.

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