@article { author = {Mansourinejad, Noushin and Farvizi, Mohammad and Shirvani, Kourosh and Rahimipour, Mohammad Reza and Razavi, Mansour}, title = {Effect of NiTi Addition on the Wear Resistance of YSZ Coatings}, journal = {Advanced Ceramics Progress}, volume = {3}, number = {3}, pages = {32-37}, year = {2017}, publisher = {Materials and Energy Research Center (MERC) Iranian Ceramic Society (ICERS)}, issn = {2423-7477}, eissn = {2423-7485}, doi = {10.30501/acp.2017.90756}, abstract = {In this study, small fraction of NiTi (5 wt%) was added to Yttria stabilized zirconia (YSZ) top coat to improve it sliding wear resistance. The measurement of width of wear tracks after wear tests under a 15 N load for 100 m sliding distances showed that the width of wear track in NiTi-YSZ coating is shorter than that in YSZ coating which depicts the higher wear resistance of NiTi-YSZ coating samples. It is believed that the higher H/E value and pseudoelasticity effect of NiTi are two important factors which improved the wear performance of applied coatings. Also, to evaluate the role of addition of a NiTi (5 wt%)–YSZ buffer layer on the durability of YSZ coatings during wear operation, wear tests with a 20 N normal load and with a constant frequency were conducted on coated samples. It was observed that the conventional YSZ coating cracked and delaminated after about 60 m sliding distance. However, in samples which contain a NiTi (5 wt%) –YSZ buffer layer delamination was not observed until 100 m sliding distance which is attributed to the ability of NiTi for accommodation of interface stresses and hindering of premature delamination during wear test under higher loads.}, keywords = {Air plasma spraying (APS),Yttria stabilized zirconia (YSZ),NiTi,Wear}, url = {https://www.acerp.ir/article_90756.html}, eprint = {https://www.acerp.ir/article_90756_ead50bc1aae0fc033d6b9b173237810d.pdf} }