Ceramic Stripe Wear

I love a retro striped tee.

Ceramic stripe wear.

And it s easy to wear if you want to make an outfit a little more fun. The museum has a ceramic strip demonstration kit and a 1959 brochure. However retrieved bearings demonstrate edge loading wear. Retrieved heads from ceramic on ceramic bearing couples sometimes have a long narrow area of damage which has been called stripe wear.

Alumina ceramic on ceramic bearings have very low wear rates in standard hip simulators. Also known as hydlar z it is often used for parts that are continuously exposed to wear and abrasion such as wear strips and bushings. Ceramic on ceramic coc articulations were developed as an alternative bearing to conventional metal on polyethylene mop bearings in order to decrease bearing surface wear and hopefully increase. Since no cup coating was found in these early generations of ceramic bearings component migration was common.

Factors causing stripe wear including obesity and cup malpositioning also involve increased risk of ceramic liner fracture and merit heightened concern. We analyzed 16 retrieved bearings. Ceramic strips continued to be used on some 7000 series instruments until the mid 1970s and plug ins until the early 1990s. Click on the image to view the pdf.

The average wear volume was 0 4 mm3 year in the femoral heads. Stripe wear has been reported in many ceramic on ceramic hip replacement retrievals and microseparation separation of the femoral head from the acetabular cup has been proposed as one suggested. This is a preview of subscription content log in to check access. This pattern is only seen in the early stages of ceramic on ceramic wear as a result of line contact between the head and the edge of the liner.

I think of it as a basic classic pattern. Ceramic strips were also offered as components for sale. Designed for extreme wear resistance this kevlar filled nylon 6 6 material lasts up to 20 times longer than unfilled nylon.