Direct ink writing to fabricate porous acetabular cups from titanium alloy

作     者：Naima Valentin Weijian Hua Ashish K.Kasar Lily Raymond Pradeep L.Menezes Yifei Jin Naima Valentin;Weijian Hua;Ashish K.Kasar;Lily Raymond;Pradeep L.Menezes;Yifei Jin

作者机构：Mechanical Engineering DepartmentUniversity of NevadaRenoRenoNV 89557USA 

基　　金：supported by the Micro Grant (PG20473) at the University of Nevada  Reno  USA 

出 版 物：《Bio-Design and Manufacturing》 (生物设计与制造（英文）)

年 卷 期：2023年第6卷第2期

页      码：121-135页

摘      要：Acetabular cups,which are among themost important implants in total hip arthroplasty,are usually made from titanium alloys with high porosity and adequate mechanical *** current three-dimensional(3D)printing approaches to fabricate customized acetabular cups have some inherent disadvantages such as high cost and energy consumption,residual thermal stress,and relatively low ***,in this work,a direct ink writing method was developed to print a cup structure at room temperature,followed by multi-step heat treatment to form microscale porous structure within the acetabular *** method is facilitated by the development of a self-supporting titanium-6 aluminum-4 vanadium(Ti64)ink that is composed of Ti64 particles,bentonite yield-stress additive,ultraviolet curable polymer,and *** effects of Ti64 and bentonite concentrations on the rheological properties and printability of inks were systematically ***,the printing conditions,geometrical limitations,and maximum curing depth were ***,some complex 3D structures,including lattices with different gap distances,honeycomb with a well-defined shape,and an acetabular cup with uniformly distributed micropores,were successfully printed/fabricated to validate the effectiveness of the proposed method.

主 题 词：Acetabular cup Direct ink writing Titanium alloy Bentonite Heat treatment 

学科分类：08[工学] 080502[080502] 0805[工学-能源动力学] 

核心收录：

D　O　I：10.1007/s42242-022-00222-2

馆 藏 号：203118230...