SYMPOSIA PAPER Published: 01 January 1985

Strengthening of Calcium Fluoride


Improvements in the fracture and grain boundary strengths in fusion cast calcium fluoride are discussed. A fluorocarbon cleaning process that successfully improved the fracture strength was scaled to an apparatus capable of treating 30-centimeter diameter CaF2 ingots. Mean fracture strengths of 132 MPa (19 ksi) were obtained. Diffusion of strontium ions into CaF2 failed to strengthen the material because stress relaxation effects eliminated the induced stresses.

Author Information

Willingham, CB
Spears, MA
Graves, GA
Knecht, WL
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: F01
Pages: 101–105
DOI: 10.1520/STP28962S
ISBN-EB: 978-0-8031-4956-4
ISBN-13: 978-0-8031-0930-8