High-Strength Bioresorbable Fe-Ag Nanocomposite Scaffolds: Processing and Properties

High-Strength Bioresorbable Fe-Ag Nanocomposite Scaffolds: Processing and Properties

Bibliographic Details
Parent link:AIP Conference Proceedings
Vol. 1683 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures.— 2015.— [020244, 7 p.]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра физики высоких технологий в машиностроении (ФВТМ)
Other Authors: Sharipova A. Aliya, Psakhie S. G. Sergey Grigorievich, Swain S. K. Sanjaya, Gutmanas E. Y. Elazar, Gotman I. Irena
Summary:Title screen
High strength ductile iron-silver nanocomposite scaffolds were fabricated employing high energy attrition milling of micron-submicron powders, followed by cold sintering/high pressure consolidation. Particulate leaching method with soluble Na[2]SO[4] and K[2]CO[3] salts as porogens was used to create scaffolds with 50, 55, 60 and 73% volume fraction of pores. Part of specimens was annealed at 600, 800 and 900°С. Specimens were characterized employing X-ray diffraction, scanning electron microscopy (SEM) with electron probe microanalysis (EDS) and high resolution SEM. Mechanical properties were measured in compression and permeability was measured in permeameter based on Darcy's law. Scaffolds with 50% and 55% porosity exhibited high compressive strength (18-22 MPa), compressive strength of 8-12 MPa was observed for scaffolds with 73% porosity. Treatments at 800 and 900°С result in increase of strength and ductility with some coarsening of microstructure. Best combination of compressive strength (15 MPa) and permeability (0.6{-6} cm{2}) is close to the range of trabecular bone.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2015
Subjects:
электронный ресурс
труды учёных ТПУ
нанокомпозиты
спекание
рентгеновская дифракция
сканирующая электронная микроскопия
каркасы
кости
Online Access:http://dx.doi.org/10.1063/1.4932934
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=645033

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