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Materials

Design

Processes

Units

Formulas

Math
Quartz
Crystal symmetry class Trigonal 32
Density 2651 kg/m3
Constitutive data is presented in the Strain-Charge format.
Compliance
12.77 -1.79 -1.22 -4.5 0 0
-1.79 12.77 -1.22 4.5 0 0
-1.22 -1.22 9.6 0 0 0
-4.5 4.5 0 20.04 0 0
0 0 0 0 20.04 -9
0 0 0 0 -9 29.1
*10-12 
Piezoelectric Coupling
-2.3 2.3 0 -0.67 0 0
0 0 0 0 0.67 4.6
0 0 0 0 0 0
*10-12 
Relative Permittivity
4.52 0 0
0 4.52 0
0 0 4.68
,  8.854 *10-12 
For a description of the ordering convention used to layout the constitutive matrices, see Subscript Ordering.
Glossary
FREE Publications
3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

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Information, coverage of important developments and expert commentary in manufacturing.

more publications