title: Non-destructive evaluation of mechanical properties of poly (vinyl) alcohol-hydroxyapatite nanocomposites.
abstract: Hydroxyapatite-poly (vinyl) alcohol nanocomposite powder was synthesized using varying poly (vinyl) alcohol concentrations. The dried powder was compacted into micro-porous disks at a load of 4 tons. The disks were sintered at 1200 degrees C to evolve porous nanocomposites. Size and shape of the pores observed in the scanning electron micrographs were quantified by using image processing software. Ultrasound velocity measurements were done to evaluate mechanical properties non-destructively.
authors.affiliation: Materials Science and Technology Division, National Metallurgical Laboratory, Jamshedpur, India. nayar@nmlindia.org
authors.forename: Suprabha
authors.initials: S
authors.lastname: Nayar
authors.forename: Sharmistha P
authors.initials: SP
authors.lastname: Sagar
authors.forename: Avijit
authors.initials: A
authors.lastname: Guha
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry; D001696:Biomechanical Phenomena / Q000502:physiology; D019245:Compressive Strength; D017886:Durapatite / Q000737:chemistry*; D055119:Elastic Modulus; D008422:Materials Testing / Q000379:methods*; D053761:Nanocomposites / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D016062:Porosity; D013314:Stress, Mechanical; D013499:Surface Properties; D014961:X-Ray Diffraction
chemical_list: D001672:Biocompatible Materials; D011108:Polymers; D011142:Polyvinyl Alcohol; D017886:Durapatite