Manufacture and Characterisation of Porous Materials. (Group website here) Our current focus is:
Ø to develop the patented Lost Carbonate Sintering (LCS) process for manufacturing porous metals,
Ø to study the mechanical, thermal, electrical, acoustic and biological properties of porous metals and metal matrix syntactic foams, and
Ø to explore their feasibility for applications in energy, automotive, defence, aerospace, building and biomedical industries.
The LCS technology has been licensed to Versarien plc, a high-tech start-up company founded in 2010 to commercialise the LCS process for micro-porous copper in thermal management applications. Versarien was floated on the London Stock Exchange in June 2013, with a market capitalisation of more than £10 million. Versarien has acquired Total Carbide to expand the production.
Current Research Projects
Heat transfer properties of porous copper manufactured by Lost Carbonate Sintering
Zhu Xiao and Yuyuan Zhao
Development of LCS porous metals with novel structures for optimum heat exchange performance
Jan Baloyo, Yuyuan Zhao and Will Battrick
Electrochemical properties of porous metals manufactured by Lost Carbonate Sintering
Kaikan Diao and Yuyuan Zhao
Energy absorption and impact response of aluminium matrix syntactic foams
Mohamed Al Tenaiji, Zhongwei Guan, Wesley Cantwell and Yuyuan Zhao
Multifunctional applications of porous metals: heat dissipation, heat recovery, sound absorption and electromagnetic shielding
Liping Zhang and Yuyuan Zhao
Y. Y. Zhao, ‘Porous metallic materials and method of production thereof’, 2005, EP1755809.
Selected Recent Publications (Full list here)
Z. Xiao and Y.Y. Zhao, ‘Heat transfer coefficient of porous copper with homogeneous and hybrid structures in active cooling’, Journal of Materials Research, 28(2013), 2545-2553.
Z. Xiao, Z. Li, A. Zhu, Y. Zhao and Y. Zhu, ‘Surface characterization and corrosion behavior of a novel imitation-gold copper alloy with high tarnish resistance property in salt spray environment’, Corrosion Science, 76(2013), 42-51.
Y. Zhao, ‘Porous metallic materials produced by P/M methods’, editorial, Journal of Powder Metallurgy & Mining, 2(2013), e113.
B. Zhang, T. Chen, Y. Zhao, W. Zhang and J. Zhu, ‘Numerical and analytical solutions for sound propagation and absorption in porous media at high sound pressure levels’, Journal of the Acoustical Society of America, 132(2012), 1436–1449.
X.F. Tao and Y.Y. Zhao, ‘Compressive failure of Al matrix syntactic foams manufactured by melt infiltration’, Materials Science and Engineering A, 549(2012), 228-232.
S. Gong, Z. Li and Y.Y. Zhao, ‘An extended Mori–Tanaka model for the elastic moduli of porous materials of finite size’, Acta Materialia, 59(2011), 6820-6830.
M. Altenaiji, G.K. Schleyer, Y.Y. Zhao, ‘Characterisation of aluminium matrix syntactic foams under static and dynamic loading’, Applied Mechanics and Materials, 82(2011), 142-147.
Y. Zhao, ‘Metal matrix syntactic foams: manufacture, matrix material, microstructure, modulus and more’, JoM, 63(2011), 35.
X. Xue and Y. Zhao, ‘Ti matrix syntactic foam fabricated by powder metallurgy: particle breakage and elastic modulus’, JoM, 63(2011), 43-47.
S. Gong, Z. Li, G.Y. Xu, N. Liu, Y.Y. Zhao and S.Q. Liang, ‘Fabrication, microstructure and property of cellular CuAlMn shape memory alloys produced by sintering–evaporation process’, Journal of Alloys and Compounds, 509(2011), 2924-2928.
X.F. Tao and Y.Y. Zhao, ‘Compressive behavior of Al matrix syntactic foams toughened with Al particles’, Scripta Materialia, 61(2009), 461-464.
J. Chen, Z. Li and Y.Y. Zhao, ‘A High working temperature CuAlMnZr shape memory alloy’, Journal of Alloys and Compounds, 480(2009), 481-484.
X. F. Tao, G. K. Schleyer and Y. Y. Zhao, ‘Indentation tests on Al matrix syntactic foams’, in: H. Zhao and N. A. Fleck (eds.), Proc. IUTAM Symposium on Mechanical Properties of Cellular Materials, IUTAM Bookseries, 12(2009), 97-104.
M. Lu, Y.Y. Zhao, G. Seiffert and C. Hopkins, ‘Acoustic absorption characteristics of an porous steel’, Materials Research Society Symposium Proceedings, 1188(2009), 207-212.
L.P. Zhang, Y.Y. Zhao, D. Mullen and K. Lynn, ‘Heat transfer performance of porous copper fabricated by lost carbonate sintering process’, Materials Research Society Symposium Proceedings, 1188(2009), 213-218.
Z. Li, Z. Y. Pan, Y.Y Zhao, Z. Xiao, M.P.Wang, ‘Microstructure and properties of high conductivity, super high strength Cu-8.0Ni-1.8Si-0.6Sn-0.15Mg alloy’, Journal of Materials Research, 24(2009), 2123-2129.
X. F. Tao, L. P. Zhang and Y. Y. Zhao, ‘Al matrix syntactic foam fabricated with bimodal ceramic microspheres’, Materials and Design, 30(2009), 2732-2736.
N. Tang, M.P. Wang, H.F. Lou, Y.Y. Zhao and Z. Li, ‘Microstructure and texture of twin-roll cast Mg–3Al–1Zn–0.2Mn magnesium alloy’, Materials Chemistry and Physics, 116(2009), 11-15.
Z. Li, J.L. Chen and Y.Y. Zhao, ‘Corrosion characteristic of Ce Al brass in comparison with As Al brass’, Materials and Design, 30(2009), 1743-1747.
L. P. Zhang and Y. Y. Zhao, ‘Fabrication of high melting-point porous metals by lost carbonate Sintering Process via Decomposition Route’, Journal of Engineering Manufacture, 222(2008), 267-271.
D. J. Thewsey and Y. Y. Zhao, ‘Thermal conductivity of porous copper manufactured by the lost carbonate sintering process’, Physica Status Solidi A, 205(2008), 1126–1131.
Y. Zhao and L. E. Monaghan, ‘A novel manufacturing method for titanium foam for biomedical applications’, in: Advances in Powder Metallurgy & Particulate Materials, Proc. 2008 World Congress on Powder Metallurgy & Particulate Materials, June 8–12, 2008, Washington, D.C., US. Volume III: Part 9, MPIF, 2008, 340-348.
L. P. Zhang and Y. Y. Zhao, ‘Mechanical response of Al matrix syntactic foams produced by pressure infiltration casting’, Journal of Composite Materials, 41(2007), 2105-2117.
X. F. Tao, L. P. Zhang and Y.Y. Zhao, ‘Mechanical response of porous copper manufactured by lost carbonate sintering process’, Materials Science Forum, 539-543(2007), 1863-1867.
X. Ma, A. J. Peyton and Y. Y. Zhao, ‘Eddy current measurements of the electrical conductivity and magnetic permeability of porous metals’, NDT & E International, 39(2006), 562-568.
M. A. Salazar-Guapuriche, Y.Y. Zhao, A Pitman and A Greene, ‘Correlation of strength with hardness and electrical conductivity for aluminium alloy 7010’, Materials Science Forum, 519-521(2006), 853-858.
Y. Y. Zhao, ‘Considerations in designing a centrifugal atomiser for metal powder production’, Materials & Design, 27(2006), 745-750.
D. X. Sun and Y. Y. Zhao, ‘Simulation of thermal diffusivity of Al/NaCl powder compacts in producing Al foams by the sintering and dissolution process’, Journal of Materials Processing Technology, 169(2005), 83-88.
X. Ma, A. J. Peyton and Y. Y. Zhao, ‘Measurement of the electrical conductivity of open-celled aluminium foam using non-contact eddy current techniques’, NDT & E International, 38(2005), 359-367.
Y. Y. Zhao, T. Fung, L.P. Zhang and F.L. Zhang, ‘Lost carbonate sintering process for manufacturing metal foams’, Scripta Materialia, 52(2005), 295-298.
D. X. Sun and Y. Y. Zhao, ‘Phase changes in sintering of Al/Mg/NaCl compacts for manufacturing Al foams by the sintering and dissolution process’, Materials Letters, 59(2005), 6-10.
Y. Y. Zhao, ‘Analysis of flow development in centrifugal atomisation Part II: Disintegration of a non-fully spreading melt’, Modelling and Simulation in Materials Science and Engineering, 12(2004), 973-983.
Y. Y. Zhao, ‘Analysis of flow development in centrifugal atomization Part I: Film thickness of a fully spreading melt’, Modelling and Simulation in Materials Science and Engineering, 12(2004), 959-971.
J. W. Xie, Y. Y. Zhao and J. J. Dunkley, ‘Effects of processing conditions on powder particle size and morphology in centrifugal atomisation of tin’, Powder Metallurgy, 47(2004), 168-172.
K. H. Ho and Y. Y. Zhao, 'Modelling Flow Development on Rotating Disc in Centrifugal Atomisation', Materials Science and Engineering A, 365(2004), 336-340.
Y. Y. Zhao, F. S. Han and T. Fung, 'Optimisation of Compaction and Liquid-State Sintering in Sintering and Dissolution Process for Manufacturing Al Foams', Materials Science and Engineering A, 364(2004), 118-126.
Y. Y. Zhao, 'Stochastic Modelling of Removability of NaCl in Sintering and Dissolution Process to Produce Al Foams', Journal of Porous Materials, 10(2003), 105-111.
F. Han, G. Seiffert, Y. Zhao and B. Gibbs, 'Acoustic Absorption Behaviour of an Open-Celled Aluminium Foam', Journal of Physics D: Applied Physics, 36(2003), 294-302.
D. X. Sun and Y. Y. Zhao, 'Static and Dynamic Energy Absorption of Al Foams Produced by Sintering and Dissolution Process', Metallurgical and Materials Transactions B, 34(2003), 69-74.
Y. Y. Zhao and D. X. Sun, ‘A Novel Sintering-Dissolution Process for Manufacturing Al Foams’, Scripta Materialia, 44(2001), 105-110.
Last updated on 4 September 2013