1. Dr. Kuruvilla (Karl) Cherian
Independent Materials Scientist-Consultant
(Diamond and Advanced Materials Processing Technologies)
Home Office: 347 Rose Brier Drive, Rochester Hills, Michigan, USA
Email: kuruvilla.cherian@usa.net, amprayilusa@gmail.com
Excerpts from R&D work in:
Diamond Synthesis/Crystallization Research
(at university and industrial laboratories in India, Australia and USA)
A.New Liquid Phase Route To Metastable Diamond Surface
Crystallization
B. HPHT Diamond Synthesis
C. Diamond CVD
D.Other Novel Approaches For Diamond And Related
Materials Synthesis
a) Solvo-Thermal Process For Diamond
b) LPSSS Process: Plasma Assisted Metal-Carbon-Hydrogen
Route To Diamond
E. Diamond Science & Technology Research Presentations
And Papers At/In International Conferences And
Research Publications
(If interested in similar projects, please contact: amprayilusa@gmail.com)

2. Dr. K. Cherian-D-1
A. New Liquid Phase Route To Metastable Diamond Surface Crystallization
Doctoral and further research, at SPU in India and UQ in Australia.
Ph.D. Thesis Title:
THE DISSOLUTION AND METASTABLE AUTOEPITAXIAL RECRYSTALLIZATION OF DIAMOND*
Research Supervisor: Professor A. R. Patel, Ph.D. (London), F.A.Sc., at Dept. of Physics (Solid State), SPU.
(Former student of Professor S. Tolansky, F.R.S., D.Sc. at RHC, University of London)
*This Ph.D. research showed for the first time ever, the possibility of diamond formation in a liquid phase
under metastable conditions, by a dissolution and surface recrystallization process.
Media/News reports in:
 Diamond Depositions: Science & Technology (USA) vol.1, No.2, pp. 1, 31&32, 1990.
 Diamond Depositions: Science & Technology (USA) vol.2, No.6, pp. 1&9, 1991.
 Also cited in News & Views: Materials Science, Nature, Vol. 385, p. 485, Feb. 1997.
Related Research reports in/at:
 Journal of Crystal Growth (Netherlands) 46 (1979) 706-708.
 Papers and Proceedings of the Seminar “The Many Facets of the Indian Diamond
Industry”, Bombay, (1980) Paper C4.
 Indian Journal of Pure & Applied Physics, 19 (1981) 803-820.
 Pramana (Journal of Physics, Indian Academy of Sciencs) 22 (1984) 377-386.
 Current Trends in Crystal Growth and Characterization:, Proceedings of the IV National
Seminar on Crystal Growth, University of Mysore; Ed. K. Byrappa (Publishers: MIT
Associates Pvt. Ltd., Bangalore) (1991) 246-257.
 Surface and Coatings Technology (Netherlands) 47 (1991) 127-143.
 Applications of Diamond Films and Related Materials - Materials Science Monographs, 73
(1991) 389-394.
 Innovations in Materials Conference, Washington D.C., USA (July 1998)

3. Dr. K. Cherian-D-2
B. HPHT Diamond Synthesis
Process technology standardization at industrial plant in India.
Media/News report in:
 Diamond Depositions: Science & Technology (USA) vol.2, No.7, p 6, 1991
Related Research reports in/at:
 Fifth International Conference on Surface Modification Technologies, University of
Birmingham, U.K. (1991).
 III Annual General Meeting of the Materials Research Society of India, Indian Institute of
Science, Bangalore, India (1992).
HP-HT cubic press - with WC cubic anvils
Accessories used in HP-HT diamond synthesis
Synthesized diamond grit embedded in the catalyst metal-carbon matrix;
increasing diamond yield evident in samples from left to right.
Pyrophyllite cubes
Graphite
and
Catalyst
Sections through the synthesis cells of different runs

4. Dr. K. Cherian-D-3
C. Diamond CVD
Establishment of a microwave plasma diamond CVD research facility and engineering diamond
growth shapes, chemical processing of diamond, at University of Queensland Chemical
Engineering Department in Australia
Media/News report in:
 University of Queensland News: http://www.uq.edu.au/news/index.html?article=540
Related Research reports in/at:
 Diamond 1996: 7th European Conference on Diamond, Diamond-like & Related Materials
and 5th International Conference on The New Diamond Science & Technology, Tours,
France (September 1996).
 Chemeca ’98: 26th
Australasian Chemical Engineering Conference, Port Douglas,
Australia
 Diamond Materials IV - Proceedings of The 4th International Symposium on Diamond
Materials, The Electrochemical Society, Proc. Vol. 95-4 (1995) 342-346.
 Applications of Diamond Films and Related Materials: Third International Conference,
Feldman et.al., (eds), National Institute of Standards & Technology, USA (1995) 429-
432.
 Diamond for Electronic Applications, Materials Research Society Symposium Proceedings
vol. 416 (1996) 241-247.
 Chemical Aspects of Electronic Ceramics Processing, Materials Research Society
Symposium Proceedings vol. 495 (1997) 419-424
 Diamond & Related Materials 9 (2000) 328-332

5. Dr. K. Cherian-D-4
D. Other Novel Approaches For Diamond And Related Materials Synthesis
At Penn State Materials Research Laboratory (Diamond Group), in the USA.
D(a). Solvo-Thermal Process For Diamond
Media/News reports in:
 Chemical & Engineering News, vol 75 (Feb 10, 1997) p.25
 Nature 385, 485 (06 Feb 1997) News and Views
Related Research reports in/at:
 The 4th International Symposium on Diamond Materials, The Electrochemical Society,
Reno, USA (May 1995).
 3rd
International Conference on Solvothermal Reactions Bordeaux, France (1999)
 Nature, 385 (1997) 513-515
D(b). LPSSS Process: Plasma Assisted Metal-Carbon-Hydrogen Route To Diamond
Media/News reports in:
 Materials Technology 11 6-9, 1996
 High-Tech Materials Alert (USA) vol. 12, No. 11, p.1, 1995
Related Research reports in/at:
 Materials Letters, 25 (1995) 191-193.
 Diamond Materials IV - Proceedings of The 4th International Symposium on Diamond
Materials, The Electrochemical Society, Proc. Vol. 95-4 (1995) 95-99.
 Applications of Diamond Films and Related Materials: Third International Conference,
Feldman et.al., (eds), National Institute of Standards & Technology, USA (1995) 391-
394.
 Diamond & Related Materials 6 (1997) 1747-1752
 Keynote Paper at PacRim2: The 2nd International Meeting of Pacific Rim Ceramic
Societies, Cairns, Australia, July 1996 Published in CD Rom, 1977
 Materials Research Innovations, 1 (1997) 117-129
Diamond growth in a Fe-C-H*
liquid phase at ~ 1 atm.
Starting material, poor morphology diamond
grit ~15 micron size (left)
Transformation of anhedral grit to cubo-
octahedral crystals ~30 micron size in about
4 hours through the Me-C-H processing
approach (right)

6. Dr. K. Cherian-D-5
DR. KURUVILLA CHERIAN
E. Diamond Science & Technology Research Presentations And Papers
At/In International Conferences and Research Publications
 Overgrowths on diamond at atmospheric pressure
A.R. Patel and Kuruvilla A. Cherian, in: Journal of Crystal Growth (Netherlands) 46 (1979) 706-708.
 Growth of diamond at atmospheric pressure in a liquid medium
A.R. Patel and Kuruvilla A. Cherian, in: Papers and Proceedings of the Seminar “The Many Facets of the Indian Diamond
Industry”, Bombay, (1980) Paper C4.
 Crystallization of diamond at atmospheric pressure
A.R. Patel and Kuruvilla A. Cherian, in: Indian Journal of Pure & Applied Physics, 19 (1981) 803-820.
 On the possible origins of natural diamonds
A.R. Patel and Kuruvilla A. Cherian, in: Pramana (Journal of Physics, Indian Academy of Sciencs) 22 (1984) 377-386.
 The dissolution and metastable surface recrystallization of diamond: the possibility of a new method of
diamond crystal growth
Kuruvilla A. Cherian, in: Current Trends in Crystal Growth and Characterization:, Proceedings of the IV National
Seminar on Crystal Growth, University of Mysore; Ed. K. Byrappa (Publishers: MIT Associates Pvt. Ltd., Bangalore)
(1991) 246-257.
 Nickel-assisted metastable diamond formation (surface recrystallization) in a dissolution medium at
atmospheric pressure
Kuruvilla A. Cherian, in: Surface and Coatings Technology (Netherlands) 47 (1991) 127-143.
 Surface micromorphological characteristics of natural, HP-HT synthetic and metastably surface
recrystallized diamond
A.J. Kailath, M. Komath and K.A. Cherian, at: Fifth International Conference on Surface Modification Technologies,
University of Birmingham, U.K. (1991).
 Metastable surface recrystallization of diamond from the liquid phase: substrate effects
Kuruvilla A. Cherian, in: Applications of Diamond Films and Related Materials - Materials Science Monographs (USA), 73
(1991) 389-394.
 HP-HT synthesis of industrial diamonds
Ansu J. Kailath and Kuruvilla A. Cherian, at: III Annual General Meeting of the Materials Research Society of India,
Indian Institute of Science, Bangalore, India (1992).
 RF plasma assisted deposition of diamond-like carbon films from methanol-water vapour mixture
Manoj Komath, Kuruvilla A. Cherian, S.A. Gangal and S.K. Kulkarni, at: IV Annual General Meeting of the Materials
Research Society of India, Trivandrum, India (1993).
 Engineering diamond crystal shapes during combusion flame synthesis
K.A. Cherian, J. Litster, V.Rudolph and E.T. White, in: Diamond Materials IV - Proceedings of The 4th International
Symposium on Diamond Materials (USA), The Electrochemical Society, Proc. Vol. 95-4 (1995) 342-346.
 Evidence for slip and double spiral growth mechanism in combustion flame synthesized diamond.
K.A. Cherian, J. Litster, V. Rudolph and E.T. White, in: Applications of Diamond Films and Related Materials - Third
International Conference, Feldman et.al, (eds), National Institute of Standards & Technology, USA (1995) 429-432.
 Several approaches to diamond growth under hydrothermal conditions
R.Roy, R.C. DeVries, D. Ravichandran, K.A. Cherian and A. Badzian, at: The 4th International Symposium on Diamond
Materials, The Electrochemical Society, Reno, USA (May 1995).
 Single crystal and polycrystalline growth of diamond from metallic (MexCyHz) solutions below 1
atmosphere.
Rustum Roy, H.S. Dewan, J.P. Cheng, K.A. Cherian and W.R. Drawl, in: Diamond Materials IV - Proceedings of The 4th
International Symposium on Diamond Materials (USA), The Electrochemical Society, Proc. Vol. 95-4 (1995) 95-99.
 Diamond precipitation and single crystal homoepitaxial growth in the system Ag-C-H
Rustum Roy, Jiping Cheng, William R. Drawl and Kuruvilla A. Cherian, in: Applications of Diamond Films and Related
Materials: Third International Conference, Feldman et.al., (eds), National Institute of Standards & Technology, USA
(1995) 391-394.
 Precipitation of diamond from metallic liquids below 1 atm.
R. Roy, H.S. Dewan, K.A. Cherian, J.P. Cheng, A. Badzian, W. Drawl and C. Langlade, in: Materials Letters, 25 (1995)
191-193.

7. Dr. K. Cherian-D-6
 Significant shifts of 1332 cm-1 diamond Raman line caused by exciting laser power and particle size
Xing-Zhong Zhao, Kuruvilla A. Cherian, Rustum Roy and William B. White, at: The American Ceramic Society Annual
Meeting, Indianapolis, USA (1996)
 New observations on mechanism of growth in combustion flame diamonds
K.A. Cherian, J. Litster, V. Rudolph, E.T. White & R. Roy, at: Diamond 1996 - 7th European Conference on Diamond,
Diamond-like & Related Materials and 5th International Conference on The New Diamond Science & Technology, Tours,
France (September 1996).
 Diamond needles and tips as engineered growth shapes
K.A. Cherian, J. Litster, V. Rudolph & E.T.White, in: Diamond for Electronic Applications, Materials Research Society
Symposium (USA) Proceedings vol. 416 (1996) 241-247.
 A new process for diamond synthesis at low pressures is a potential route to the growth of large single
crystal
Rustum Roy and Kuruvilla A. Cherian, in: Materials Technology 11 (1996) 6-9.
 Chemi-mechanical polishing of diamond: new possibilities
K.A. Cherian, J. Litster, V. Rudolph, E.T. White & R. Roy, at: 10th International Conference on Surface Modification
Technologies, Singapore (September 1996)
 Two revolutions in diamond synthesis (LPSSS & QQC processes)
Kuruvilla A. Cherian and Rustum Roy, Keynote Paper at: PacRim2 - The 2nd International Meeting of Pacific Rim
Ceramic Societies, Cairns, Australia, July 1996 Published in CD Rom, 1997
 Chemical etching of diamond revisited: past basic research as guide to new processing technologies
Kuruvilla A. Cherian, Jim Litster, Victor Rudolph and Edward T. White, in: Chemical Aspects of Electronic Ceramics
Processing, Materials Research Society Symposium (USA) Proceedings vol. 495 (1997) 419-424
 Oriented diamond growth on platinum via a Me-C-H low pressure processing route
Kuruvilla A. Cherian, Scott D. Wolter and Rustum Roy, in: Diamond & Related Materials 6 (1997) 1747-1752
 Precipitation of diamond from MexCyHz Solutions at 1 Atm.
R. Roy, K.A. Cherian, J.P. Cheng, A. Badzian, C. Langlade, H. Dewan and W. Drawl, in: Materials Research Innovations,
1 (1997) 117-129
 Hydrothermal growth of diamond in C-Metal-H2O systems
Xing-Zhong Zhao, Rustum Roy, Kuruvilla A. Cherian and A. Badzian. in: Nature, 385 (1997) 513-515
 Downshifts of Raman peak in diamond powders
Xing-Zhong Zhao, Kuruvilla A. Cherian, Rustum Roy and William B. White, in: Journal of Materials Research, 13 (1998)
1974-1976.
 Novel approaches in engineering diamond growth and morphology
S.R. Rigby, K.A. Cherian, J. Litster, V. Rudolph & E.T. White, at: Chemeca ’98 - 26th Australasian Chemical Engineering
Conference, Port Douglas, Australia
 Liquid phase metastable growth of diamond using non-diamond solid carbon
Kuruvilla A. Cherian, Victor Rudolph and Edward T. White, at: Innovations in Materials Conference, Washington D.C.,
USA (July 1998)
 Solvo and Hydrothermal approaches to diamond synthesis: the role of metal and hydrogen
Rustum Roy and Kuruvilla A. Cherian, at: 3rd International Conference on Solvothermal Reactions, Bordeaux, France
(1999)
 Quantifying CVD diamond growth and morphology: calculating the 'α’ parameter from any two crystal
dimensions
S.D. Rigby, K.A. Cherian, J.D. Litster, V. Rudolph and E.T. White, in: Diamond & Related Materials 9 (2000) 328-332
 Innovations in Materials and Surface Engineering through Simultaneous Multiwavelength and Pulsed Laser
Processing
Kuruvilla Cherian, Pravin Mistry and Rustum Roy, in: Proceedings of the Ted White Festschrift Symposium, Chemical
Engineering Department, University of Queensland, Australia (December 2001)
 Decrystallization of Diamond under Pulsed Excimer and YAG Lasers and Subsequent Lattice Relaxation
A. Badzian, R. Roy, T. Badzian, W. Drawl, P. Mistry, M.C. Turchan, K.A. Cherian, R. Martukanitz, V. Semak and T.M.
Petachm, at: International Conference on Metallurgical Coatings and Thin Films, San Diego, USA (April 2002)
 Decrystallization of diamond by Nd:YAG and excimer lasers and subsequent lattice relaxation
A. Badzian, R. Roy, T. Badzian, W. Drawl, P. Mistry, M.C. Turchan, K. Cherian, in: Diamond & Related Materials, 14
(2005) 1562-1570
(Industry sponsored research results have not been published, in accordance with confidentiality agreements)
(If interested in similar diamond projects, please contact: amprayilusa@gmail.com)