Material & Coatings Testing

We perform material & coatings testing

OIC offers a broad range of axial and torsional static, dynamic, computational, and wear testing services for orthopaedic materials and products. All of our test procedures follow international test standards as described below.

If a non-standard test is needed, our engineering team will develop and incorporate modifications to suit your specific device and data needs. We pride ourselves on the ability to meet a customer’s specific needs with a wholly unique, tailored solution.

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Bone Cement Fatigue Test

Similar to ASTM F2118, this test method describes a variety of tests for evaluating the static and fatigue strength of acrylic resin-based bone cement. Constant amplitude, uniaxial, and tension-compression tests are performed to generate an S-N curve using dumbbell-shaped samples.
Pin-on-disc, pin-on-disk, pin-on-flat
Wear Testing of Polymeric Materials

Describes methodology for wear testing of various materials using OIC’s AMTI OrthoPOD. Pin rotation, disc rotation, and dynamic pin loading are all independently controlled. Track patterns and loads can be customized and are fully programmable, ensuring an accurate representation of the cross-shear motion experienced by prostheses in vivo. Testing can be performed dry or in various lubricants. POD testing can be used for screening candidate biomaterial couples and for optimizing design performance prior to cost-intensive joint simulator wear tests.
Bone Cement Fatigue Test

Similar to ISO 16402, this test method describes a variety of tests for evaluating the static and fatigue strength of acrylic resin-based bone cement. Constant amplitude, uniaxial, and tension-compression tests are performed to generate an S-N curve using dumbbell-shaped samples.
Accelerated aging
Accelerated Aging of UHMWPE (Ultra-high-molecular-weight polyethylene)

Accelerated aging evaluates the material’s chemical and mechanical stability in an extended shelf-aged condition. Components are aged in a temperature and pressure regulated oxygen chamber to verify experimental conditions are within tolerance during aging. Two individually regulated pressure tanks are available for use at OIC. Accelerated aging may be applied prior to wear testing, pin-on-disc testing, or mechanical testing.
Tensile Strength of Coatings

Evaluates the adhesion and cohesion of coatings to specific materials. Testing is performed by applying tensional loads to both coated and uncoated metal substrates. The internal cohesion of the coatings normal to the surface of samples may also be determined during this test.
Shear Strength of Coatings

Describes methodology for assessing adhesive and cohesive strength of coatings determined via shear tests. Bending fatigue tests can also be performed to provide further information, such a cracking resistance, adhesion, and the relationship between the coating and substrate.
Tensile Properties of Plastics

Describes a method for testing tensile properties of standard dumbbell-shaped specimens under defined conditions for pre-treatment, temperature, humidity and testing machine speed. Five samples of isotropic materials are tested or ten samples of anisotropic materials (five normal to, and five parallel with, the principle axis of anisotropy).
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