Grinding mechanisms and strength degradation for ceramics

Journal Article · Mon May 01 04:00:00 EDT 1989 · Journal of Engineering for Industry (Transactions of the ASME (American Society of Mechanical Engineers), Series B); (USA)

DOI:https://doi.org/10.1115/1.3188746· OSTI ID:6911346

Malkin, S; Ritter, J E ^[1]

---

1. Dept. of Mechanical Engineering, Univ. of Massachusetts, Amherst, MA (US)

This paper presents a critical review and evaluation of knowledge of the grinding mechanisms for ceramic materials and their influence on the finished surface and mechanical properties. Two main research approaches are identified: a machining approach and an indentation fracture mechanics approach. The machining approach has typically involved measurement of the grinding forces and specific energy coupled with microscopic observations of the surface morphology and grinding detritus. Any proposed mechanisms of abrasive-workpiece interaction must be consistent with the magnitude of the specific energy and its dependence on the grinding conditions. The indentation fracture mechanics approach assumes that the damage produced by grinding can be modeled by the idealized flow system produced by a sharp indentor. Indentation of a ceramic body is considered to involve elastic/plastic deformation with two principal crack systems propagating from the indentation site; lateral cracks which lead to material removal and radial/median cracks which cause strength degradation. Each of these approaches provides insight into grinding behavior and strength degradation, but each has its shortcomings.

• OSTI ID: 6911346
• Journal Information: Journal of Engineering for Industry (Transactions of the ASME (American Society of Mechanical Engineers), Series B); (USA), Journal Name: Journal of Engineering for Industry (Transactions of the ASME (American Society of Mechanical Engineers), Series B); (USA) Vol. 111:2; ISSN JEFIA; ISSN 0022-0817
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
CERAMICS
COMMINUTION
CRACK PROPAGATION
DEFORMATION
FRACTURE MECHANICS
GRINDING
MACHINING
MECHANICS
MORPHOLOGY