Hip implants must be vigorously tested before human use. Hip implants have four separate parts that make up the prostheses; the femoral head, femoral stem, acetabular shell, and acetabular linear. ASTM has standardized test methods for determining mechanical properties of hip prostheses to ensure high quality and safety for users. Testing of the calcium phosphate thermal spray is critical. Abrasive wear in-vivo can reek havoc on patients. Shear testing thermal spray used with hip implants will lead to better designs and higher strength. ASTM F1044 is a standard test method for shear testing calcium phosphate adhesion strength to metallic substrates under uniaxial shear stress. The test methods of ASTM F1044 are geared towards improving the design and adhesion strength of thermal spray coatings.
Applicable Testing Standards
Recommended Test Machine
Force range of 5 kN to 600 kN (1,125 lbf to 135,000 lbf)
Adjustable test space
The most popular choice for static tension and compression tests
These dual column testers are available in both tabletop and floor standing models
Static and fatigue forces up to 50 kN (11,250 lbf)
Frequency ratings up to 75 Hz
Oil-free, all electric actuator for clean test conditions
Lower purchase, operating, and maintenance costs than hydraulic equivalents
Recommended Testing Accessories
Allows for testing in temperature-controlled water or saline solution
PID controlled temperature up to 45°C (113°F)
Size is optimized per application
Accompanied by a broad set of accessories that are designed for biomedical baths