✦ LIBER ✦

Porosity-dependence of elastic properties and ultrasonic velocity in polycrystalline alumina — a model based on cylindrical pores

✍ Scribed by K. K. Phani

Publisher: Springer
Year: 1996
Tongue: English
Weight: 436 KB
Volume: 31
Category: Article
ISSN: 0022-2461
DOI: 10.1007/bf00355154

No coin nor oath required. For personal study only.

✦ Synopsis

Effective elastic moduli and ultrasonic velocity of materials having aligned cylindrical pores have been derived using a series expansion in terms of the difference between the upper and lower bounds of elastic moduli obtained by the variational method. The theoretical results for polycrystalline alumina agree well with the experimental data, confirming the suggestion of previous researchers that a matrix containing parallel cylindrical pores orientated perpendicular to the applied stress, provide a better model than a spherical one in describing the porosity-dependence of elastic moduli in sintered specimens.

📜 SIMILAR VOLUMES

Porosity-dependence of ultrasonic veloci

Porosity-dependence of ultrasonic velocity in sintered materials — a model based on the self-consistent spheroidal inclusion theory

✍ K. K. Phani 📂 Article 📅 1996 🏛 Springer 🌐 English ⚖ 600 KB

The porosity dependence of ultrasonic velocity in porous sintered materials has been modelled using the self-consistent spheroidal inclusion theory. Considering the pores to be oblate spheroids, an effective aspect ratio has been determined from experimental data, which serves as an additional param