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, formally known as TTZ, is a toughened modified Zirconia material that has excellent thermal, conductive, and physical properties for use as a spacer between magnets in assemblies, magnet systems, and magnet arrays. It is especially popular with rare-earth (Neodymium Iron Boron and Samarium Cobalt) magnet assemblies where potential impact is an issue. Because the material has a high density, and has been toughened, it is very resistant to abrasion, is considered inert, and is fracture resistant. Surfaces can be polished as desired to achieve a low coefficient of friction numbers, and if secondary and tertiary processes are utilized, mirror finishes are possible.
meets NASA's out-gassing requirements for space programs because CML and CVCM values are both zero. is excellent in ultra-high vacuum applications, medical applications, and applications requiring extremely tight mechanical tolerances over a range of temperatures.
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Bulk Density |
5.76 |
g/cm3 |
360 |
lb/ft3 |
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Specific Resistance |
>6.9 |
µ-ohm-m |
>27 |
10-5 ohm-in |
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Flexural Strength |
650 |
N/mm2 |
82,000 |
psi |
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Compressive Strength |
1800 |
N/mm2 |
260,000 |
psi |
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CTE (rm temp to 100°C) |
9.8 |
10-6/°C |
7.7 |
10-6/°F |
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Thermal Conductivity |
2.2 |
W/m.K |
1.27 |
BTU/ft.hr.°F |
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Max Grain Size |
.008 |
mm |
.031 |
inch |
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Color |
Off White |
N/A |
Off White |
N/A |
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Maximum Operating Temperature |
450 |
°C |
842 |
°F |
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