Loading Events

« All Events

  • This event has passed.

MMMB Research Seminar

October 22, 2019 @ 11:30 am - 12:30 pm

Title

Compositions and Mechanical Properties of Baghdadite and Hydroxyapatite Coatings Manufactured by Atmospheric Plasma Spraying

Overview

Baghdadite (Ca3ZrSi2O9) (BAG) is a calcium silicate (Ca-Si) based ceramic with osteostimulatory function, biocompability and chemical stability. BAG, in its bulk form, can promote adhesion, growth and osteogenic differentiation of stem cells; hence enhancing the proliferation of human osteoblasts (HOBs) as well as promote the activity of osteoclasts. BAG exhibits a high compressive strength, bending strength, hardness and fracture toughness that can be a potential candidate for applications of orthopedic implants.

This work studies atmospheric plasma sprayed (APS) BAG coatings and evaluates their hardness and moduli against APS hydroxylapatite (HAp) coatings. Surface roughness of BAG is more consistent with less variation than the roughness of HAp coating. Scanning probe microscopy (SPM) technique presents features, which less varied in values and sizes in BAG coating than that of HAp coating. The presence of zirconium in BAG increased the microhardness, as well as the hardness and elastic moduli derived from nanoindentation measurements, when contrasted with the equivalent properties of HAp coatings.

 

Acknowledgement: This work has been sponsored by the Australian Research Council under the Industrial Transformation and Training Centre project IC180100005 titled “SEAM: Surface Engineering for Advanced Materials”.

Bio

Christopher C. BERNDT, University Distinguished Professor

Director SEAM, Surface Engineering for Advanced Materials

Faculty of Science, Engineering and Technology, Swinburne University of Technology

Mail H38, PO Box 218, Hawthorn, VIC 3122, Australia

E-mail: cberndt@swin.edu.au

Chris Berndt is a metallurgist / materials scientist who graduated from the University of South Australia. He gained his two doctoral degrees from Monash University in the area of thermal spray coatings. His expertise revolves around a deep and fundamental understanding of “processing – structure – property” relationships of thermal spray deposits. Chris imparts his knowledge to his students and post-doctoral staff; as well as to the global community. He focuses on industrial applications across a wide range of sectors that include civil infrastructure; aviation and aerospace; and biomaterials.

Christopher C. BERNDT, University Distinguished Professor

Director SEAM, Surface Engineering for Advanced Materials

Faculty of Science, Engineering and Technology, Swinburne University of Technology

Mail H38, PO Box 218, Hawthorn, VIC 3122, Australia

E-mail: cberndt@swin.edu.au

Chris Berndt is a metallurgist / materials scientist who graduated from the University of South Australia. He gained his two doctoral degrees from Monash University in the area of thermal spray coatings. His expertise revolves around a deep and fundamental understanding of “processing – structure – property” relationships of thermal spray deposits. Chris imparts his knowledge to his students and post-doctoral staff; as well as to the global community. He focuses on industrial applications across a wide range of sectors that include civil infrastructure; aviation and aerospace; and biomaterials.

Details

Date:
October 22, 2019
Time:
11:30 am - 12:30 pm
Events Categories:
,
Events Tags:
,

Venue

Building 8, Room 114
University of Wollongong Australia + Google Map