CityU Technology Transfer Forum
Location Map of Venue
香港城市大學技術轉移論壇
Advances in Nanocomposite Coating Technologies
Date
: 5 February 2010 (Fri)
Time
: 2:30 pm to 5:30 pm
Venue
: Multi-media Conference Room, 4/F Cheng Yick-chi Building,
City University of Hong Kong, Tat Chee Avenue, Kowloon.
Language: English/Cantonese
Registration Form
Venue:
To: CityU Business and Industrial Club (CUBIC)
Name: (* Prof / Dr / Mr / Ms)
Position:
Organization:
Phone: (Office)
Fax:
(Mobile)
Email:
Address:
Multi-media Conference Room,
4/F Cheng Yick-chi Building,
City University of Hong Kong,
Tat Chee Avenue
Kowloon
Language:
English/Cantonese
Admission:
Free
Are you a CUBIC member? * Yes / No
(* please delete as appropriate)
Notes:
1. Seats will be reserved on a first-come-first-served basis. Please complete
and return the registration form to us on or before 29 January 2010 by:
Fax: 2265 8028 or Email: [email protected]
2. You are welcome to invite other guests to attend the Forum. Separate form
should be used for each application. Please make a copy of the form, if
needed.
3. Notification on successful registration will be sent via email by 3 February
2010.
Enquiries:
Ms Maggie Mak (Tel: 3442 6821; Email: [email protected])
Ms Canny Tang (Tel: 3442 6420; Email: [email protected])
Website: http://www.cityu.edu.hk/kto
Organized by:
CityU Business and Industrial Club (CUBIC),
Knowledge Transfer Office, CityU
CityU Technology Transfer Forum
About the Speakers
Synopsis
Advances in Nanocomposite Coating Technologies
Dr Wenjun Zhang studied physics and
materials science at Lanzhou University. He was a
postdoctoral fellow at the Fraunhofer Institute for
Surface Engineering and Thin Films in Germany
from 1995 to 1997 and a research fellow in City
University Hong Kong (CityU) from 1997 to 1998.
Afterwards, he spent two years working in Japan’s
National Institute for Research in Inorganic
Materials as a Science and Technology Agency
Fellow. In 2000, he joined CityU again and he is
now an associate professor of the Department of
Physics and Materials Science and a core member of the Center of SuperDiamond and Advanced Films (COSDAF). Dr Zhang’s research interests
include semiconducting nanomaterials, thin films and super-hard coatings,
surface science and modification, and ion interactions with materials. He
was recipient of the Japan Society of Applied Physics Best Paper Award in
2002, and the Friedrich Wilhem Bessel Research Award of Alexander von
Humboldt Foundation, Germany in 2003.
Advances in Synthesis and Applications of Cubic Boron
Nitride Films
Date: 5 February 2010 (Fri)
Aim
To disseminate mature technologies at City University of Hong Kong
to local industry for the advancement of knowledge and technology
in Hong Kong.
Programme
Time
Activities
2:30–2:55pm
Registration
2:55–3:00pm
Welcoming Remarks
3:00–3:30pm
Presentation 1: Advances in Synthesis and
Applications of Cubic Boron Nitride Films
Dr Wenjun Zhang, Member of the Center of
Super-Diamond and Advanced Films and Associate
Professor of the Department of Physics and
Materials Science
3:30–4:00pm
Presentation 2: Recent Development of Hard/
Superhard Nanocompostie Coatings for Engineering
and Machining Applications
Dr Sam Shum, Research Fellow of the Advanced
Coatings Applied Research Laboratory
4:00–4:30pm
Presentation 3: Laser Patterning and Hydrophobic
Surface
Dr Lawrence Li, Director of the Advanced Coatings
Applied Research Laboratory and Associate
Professor of the Department of Manufacturing
Engineering and Engineering Management
4:30–4:45pm
Q&A
4:45–5:30pm
Networking and refreshment
Dr Sam Shum received his PhD degree in CityU
in 2005. He is a research fellow at the Advanced
Coatings Applied Research Laboratory (ACARL) of
CityU and has published over 40 refereed papers
in leading international journals and conferences.
Dr Shum’s research areas include the fabrication
of functional coatings via vacuum deposition
techniques and their characterizations. Recently,
he is attracted to the development of low friction
but super-hard nanocomposite coatings by the
use of ion implantation process. The success of
the investigation will lead to positive changes in the machining industry.
In addition, he is interested in using micro-pattering and coating methods
to fabricate non-sticking surfaces with low surface energy, which may
lead to a breakthrough on many applications (e.g. molds, bio-medical
instruments).
Dr Lawrence Li is the Associate Professor of
CityU’s Department of Manufacturing Engineering
and Engineering Management. He completed his
PhD study under the supervision of Chris Hooke,
who is a world-renowned tribologist, at the
University of Birmingham in his early years. He
started the Advanced Coatings Applied Research
Laboratory (ACARL) in 2000 with funding from
the Innovation Technology Commission and
industrial donations. As leader of the ACARL
research team, Dr Li specializes in the research of
surface engineering which includes hard coatings, solid lubrication, nanocomposite films, multilayer films, tribology and laser ablation texturing.
He has been conducting collaborative research with world multi-national
companies, such as SKF in Sweden and General Motors in the States, and
with ASM and Johnson Electric in the region.
by Dr Wenjun Zhang
Cubic Boron Nitride (cBN) is structurally analogous to diamond. Differences
in the electronegativity of boron and nitrogen introduce ionicity that
contributes to the uniqueness of cBN. It is the second hardest and the
second most thermally conductive material next to diamond. Moreover,
cBN is a potentially semiconducting material superior to diamond. This
presentation reviews the recent progress in the following aspects: 1)
nucleation and growth of high-quality cBN films 2) approaches in the
interface engineering and growth techniques in increasing film thickness,
improving crystallinity, and adhesion of cBN films to the substrate 3) in
situ and post-growth doping techniques for achieving semiconductor
cBN films 4) new development in applications of cBN films in mechanical,
electronic and optoelectronic fields.
Recent Development of Hard/Superhard Nanocompostie
Coatings for Engineering and Machining Applications
by Dr Sam Shum
Friction and wear are common yet poorly understood physical phenomena.
In our daily life, they are the sources of lost energy and the causes of
harmful emissions to our environment. In most applications, such as tools
or machine components, the decrease of both friction and wear is greatly
important to the extension of the lifetime of components and energy
saving. This presentation discusses the recent development of hard/
superhard nanocomposite coatings by PVD techniques and highlights
their use by modern industries to reduce friction and wear. In addition,
the development of a multifunctional coating system, which comprises
sputtering, arc and ion beam sources, will be discussed.
Laser Patterning and Hydrophobic Surface
by Dr Lawrence Li
There is an increasing demand for the application of hydrophobic surface
in industrial and biological processes. It has been found that the contact
angle with liquid, closely related to hydrophobicity of a solid surface,
is largely determined by the micro-geometrical structure and chemistry
of the said surface. In our research, the hydrophobicity of steel surface
was achieved by implementing micro-patterns on substrate using laser
ablation process. At the same time, deformation on local surface induced
by laser heat was considered. On the patterned surface, the melted
substrate was observed to form slopes and piled to be ridges along the
sides of grooves. Different geometrical models of surface profile were
employed to approximate the real laser patterned surface to forecast the
contact angle with better accuracy.