MACOR<sup>®</sup> Machinable Glass Ceramic MGC Mechanical Properties
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MACOR® Machinable Glass Ceramic Mechanical Properties

Mechanical Properties
SI/Metric
Imperial
Density
2.52 g/cc
157 lb/ft3
Porosity
0%
0%
Young’s Modulus (25°C)
66.9 GPa
9.7x106 psi
Poisson’s Ratio
.29
.29
Shear Modulus (25°C)
25.5 GPa
3.7x106 psi
Hardness
250 Knoop 100g
48 Rockwell A
Flexural Strength
94 MPa
13,600 psi
Compressive Strength
345 MPa
50,000 psi
Fracture Toughness
1.53 MPa • m1/2
1,390 psi • in1/2
Coefficient of Kinetic Friction (25°C)
– against steel
.12
.12
against aluminum
.15
.15
against MACOR®
.15
.15
 
Macor Young's modulus and Macor flexural strength (MOR) vs temperature curves


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