Page 70 - MATERIAL SCIENCE AND ENGINEERING PART 1
P. 70

Describe the characteristic(s) of these


                             materials: shape memory alloys,



                             piezoelectric ceramics, magnetostrictive



                             materials, and electrorheological/



                             magnetorheological fluids.




                                      Shape memory alloys are metals that, after


                                      deforming, revert to their original shapes


                                      when the temperature changes. They are


                                      high strength, good elasticity, fatigue and



                                      wear resistance, easy fabrication, easy


                                      sterilisation, high power/weight ratio and


                                      lightweight.




                                                                                                                                         58



                                                    Politeknik Ibrahim Sultan
   65   66   67   68   69   70   71   72   73   74   75