Glasses Tech

September 22, 2009

Mechanical behavior of porous glasses produced by sintering of spherical particles

Filed under: Glasses 1995 — admin @ 3:59 am

Eyeglasses

Young’s modulus and biaxial flexure strength were measured for compacts of spherical glass particles sintered to various densities. The aim of the work was to relate the mechanical properties to the sintering process. In particular, changes in the interparticle neck sizes during the sintering process were measured from fracture surfaces. It had been postulated previously that the elastic moduli directly depend on the neck radius to particle radius ratio and such measurements allow the elastic behavior to be directly related to the sintering kinetics. The experimental results were consistent with both the mechanical and sintering models. These was also found to be a strong correlation between Young’s modulus and strength of the porous glass bodies. (Author abstract)

Nanjangud, S.C. Green, D.J.

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