Evaluation of Medical Equipment/Implant Materials
Mechanical Testing of Hydroxyapatite Coatings
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Evaluation of the adhesive strength and adhesive fatigue strength of coating in accordance with ASTM and JIS standards.
Outline of Evaluation Tests
This test is performed to evaluate the various mechanical properties of materials coated with hydroxyapatite, which is widely used as an implant coating material due to its excellent biocompatibility and bone affinity.
Evaluations of adhesive strength, tensile shear fatigue strength, etc. are performed in accordance with the applicable ASTM and JIS standards.
Outline of Tests
| Corresponding standards |
ASTM F1044 Standard Test Method for Shear Testing of Calcium Phosphate Coatings and Metallic Coatings (Static) ASTM F1147 Standard Test Method for Tension Testing of Calcium Phosphate and Metal Coatings (Static) ASTM F1160 Standard Test Method for Shear and Bending Fatigue Testing of Calcium Phosphate and Metallic Medical and Composite Calcium Phosphate/Metallic Coatings JIS H 8402 Test methods of tensile adhesive strength for thermal-sprayed coatings |
|---|---|
| Test methods | Tensile shear test, tensile test, fatigue tests (shear, rotating bending, plane bending) |
| Test environment (fatigue tests) | Constant temperature, constant humidity, in atmosphere |
| Loading frequency (fatigue tests) | 1-20 Hz |
Adhesive Strength Test of Coating Material (Static)
- Test standard: ASTM F1147
- Bonding surface: φ25.4 mm (φ1")
- Measurement items: Breaking load, breaking mode (determination of cohesiveness, adhesiveness)
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Structure of test specimen for adhesive strength test of coating material -
Adhesive strength test of coating material
Tensile Shear Strength of Coating Material
- Test methods: ASTM F1044 (static), ASTM 1160 (fatigue)
- Bonding surface: φ19.05 mm (φ0.75")
- Measurement items: Breaking load, fatigue life
- Breaking mode (determination of cohesiveness, adhesiveness)
(right) appearance of test, (left) enlarged view of test part
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