Dr Rumana Sultana

Dr Rumana Sultana is a committed mechanical engineer with a range of skills and knowledge in materials science and engineering. She has 20+ years of experience of working as an academic in different top universities in Australia and overseas. She has taught Mechanical and Materials Engineering and multidisciplinary subjects and supervised engineering students at Bachelor and Master levels. She has experience working as a consultant for different mining industry partners.

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EIT publication

Interface design and processing of bioactive microporous calcium phosphate coatings on load-bearing zirconia substrate

June 1, 2017 12:35 pm
This study presents the design and processing of interlocked interfaces of graded bioactive calcium phosphate coatings on a load-bearing zirconia substrate. Such interfacial structures can effectively enhance bonding between the coating and substrate, and suppress the residual stress across the interfacial region. Multiple coating layers with graded interconnected micropore structures,...Read More
EIT publication

Structure design and manufacturing of layered bioceramic scaffolds for load-bearing bone reconstruction

July 8, 2015 9:20 am
Bioceramic scaffolds with desired bone regeneration functions have the potential to become real alternatives to autologous bone grafts for reconstruction of load-bearing and critical-sized segmental bone defects. The aim of this paper was to develop a layered scaffold structure that has the biodegradable function of common monolithic scaffolds and adequate...Read More
EIT publication

Micro-porous calcium phosphate coatings on load-bearing zirconia substrate: Processing, property and application

January 25, 2013 9:49 am
This study presents the design, processing, properties and potential applications of a novel layered bio-ceramic composites consisting of three different micro-porous calcium phosphate coatings on strong zirconia cores manufactured using a recently developed slip coating-deposition and coating-substrate co-sintering technique. Detailed microstructures of the three graded micro-porous calcium phosphate coatings, and...Read More
EIT publication

Novel Layered Hydroxyapatite/Tri-Calcium Phosphate–Zirconia Scaffold Composite with High Bending Strength for Load-Bearing Bone Implant Application

January 18, 2013 9:37 am
The integration of biological and mechanical requirements remains a challenge in developing porous hydroxyapatite (HA) and tri-calcium phosphate (TCP) scaffolds for load-bearing bone implant application. W ith the newly developed slip-deposition and coating-substrate co-sintering technique, a strong layered HA/TCP-zirconia scaffold composite structure was successfully fabricated. The bending strength (321 MPa)...Read More
EIT publication

Deposition of Micro-Porous Hydroxyapatite/Tri-Calcium Phosphate Coating on Zirconia-Based Substrate

March 2, 2012 10:51 am
Scaffold-like hydroxyapatite/tri-calcium-phosphate (HA/TCP) coatings have been deposited on strong zirconia-substrates using a unique HA-slip coating-deposition and coating-substrate co-sintering process. Bending strength of such layered composites is over 300 MPa, higher than the upper strength limit of natural bones. Thick scaffold-like HA-coatings with open pores larger than 100 μm can be deposited onto...Read More
EIT publication

Processing of Layered Hydroxyapatite Ceramic Composites

July 4, 2011 12:22 pm
Layered hydroxyapatite (HA) based ceramic composites consisting of a strong ceramic composite core, 3 mol% yttrium stabilized zirconia (3Y-TZP) with 30 or 40 vol% HA, and a HA-rich porous coating were fabricated using a coating deposition and co-sintering process in the present study. The aim is to develop HA-based bio-ceramic...Read More
EIT publication

Porous hydroxyapatite coating on strong ceramic substrate fabricated by low density slip coating-deposition and coating-substrate co-sintering

May 17, 2011 12:17 pm
This study aims at developing a process technique, which can deposit porous scaffold-like hydroxyapatite (HA) coatings on strong ceramic substrates. As a first trial, micro-porous HA coatings on strong zirconia-based substrates are fabricated by the following technique—consisting of low-density HA-slip coating-deposition on the micro-porous substrates pre-sintered at 900 °C, and coating-substrate co-sintering...Read More