Publications

2022

    • Sreekumar Pisharath; Yew Jin Ong; Huey Hoon Hng. Nanoenergetic Composites with Fluoropolymers: Transition from Powders to Structures. Molecules 2022, 27, 6598. DOI: 10.3390/molecules27196598
    • Yang Feng Anders See; Sreekumar Pisharath; Yew Jin Ong; Chor Yong Tay; Huey Hoon Hng. Fluoroalkylated-GAP copolymers (GAP-FP) as promising energetic binders. Reactive and Functional Polymers 2022, 181, 105415. DOI: 10.1016/j.reactfunctpolym.2022.105415
    • Yew Jin Ong; Sreekumar Pisharath; Yang Feng Anders See; Chor Yong Tay; Huey Hoon Hng. Synthesis and characterization of a novel azido fluoroalkyl oligoether energetic plasticizer. Journal of Materials Research 2022, 37, 1296–1308. DOI: 10.1557/s43578-022-00525-1
    • Hongqi Nie; Sreekumar Pisharath; Huey Hoon Hng. Reactivity of Al/CuO Nanothermite Composites with Fluoropolymers. Combustion Science and Technology 2022, 194, 1378-1394. DOI: 10.1080/00102202.2020.1813119
    • Venu Keerthi; Hongqi Nie; Sreekumar Pisharath; Huey Hoon Hng. Combustion Characteristics of Fluoropolymer Coated Boron Powders. Combustion Science and Technology 2022, 194, 1183–1198. DOI: 10.1080/00102202.2020.1804885

    2021

    • Hong-qi Nie; Hay Yee Chan; Sreekumar Pisharath; Huey Hoon Hng. Combustion characteristic and aging behavior of bimetal thermite powders. Defence Technology 2021, 17, 755–762. DOI: 10.1016/j.dt.2020.05.009
    • Hongqi Nie; Li Ping Tan; Sreekumar Pisharath; Huey Hoon Hng. Nanothermite composites with a novel cast curable fluoropolymer. Chemical Engineering Journal 2021, 414, 128786. DOI: 10.1016/j.cej.2021.128786

    2020

    • Hongqi Nie; Sreekumar Pisharath; Huey Hoon Hng. Combustion of fluoropolymer coated Al and Al–Mg alloy powders. Combustion and Flame 2020, 220, 394–406. DOI: 10.1016/j.combustflame.2020.07.016

    201​9

    • Hong-Wei Xi; Siti Zubaidah Binte Mohammad Mazian; Hay Yee Serene Chan; Huey Hoon Hng; Ho Wee Goh; Kok Hwa Lim. Theoretical studies on structure, material properties and spectrum of 3,4-Bis(1H-5-tetrazolyl)furoxan. Journal of Molecular Modeling. 2019,25,51.​​

    2018

    • Nimesh, S.; Sudheer Kumar, A.; Hng, H.H. Combustion Studies of 4‐Nitramino‐1,2,4‐Triazole (4‐NRTZ) and Its Salts: High Impulse Nitrogenous Fuels for Propellant Composite Materials. Chemistry Select. 2018, 3, 12544–12551.​​

    201​7

    • Sudheer Kumar, A.; Nimesh, S.; Rakesh, G.; Dasheng, L.; Hng, H.H. 3-Amino-1,2,4(4H)-oxadiazol-5-one (AOD) and its nitrogen-rich salts: a class of insensitive energetic materials. New J.Chem. 2018, 42, 1840–1844.​​

    201​6 

    • Nimesh, S.; Ang, H.-G. Crystal Structure and Improved Synthesis of 1-(2H-Tetrazol-5-yl)guanidium Nitrate. Propellants Explos. Pyrotech. 2016, 41, 719–724.​​
    • ​​Pisharath, S.; Zhang, F.; Ang, H. G. Influence of Passivation on Ageing of Nano-Aluminum: Heat Flux Calorimetry and Microstructural Studies. Thermochim. Acta 2016, 635, 59–69.

    2015

    • ​​Nimesh, S.; Ang, H.-G. 1-(2H-Tetrazolyl)-1,2,4-triazole-5-amine (TzTA) – A Thermally Stable Nitrogen Rich Energetic Material: Synthesis, Characterization and Thermo-Chemical Analysis. Propellants Explos. Pyrotech. 2015, 40, 426–432.​​

    2013

    • Suceska, M.; Ang, H.-G.; Chan, H. Y. S. Study of the Effect of Covolumes in BKW Equation of State on Detonation Properties of CHNO Explosives. Propellants Explos. Pyrotech. 2013, 38, 103–112.

    2012

    • ​​Östmark, H.; Wallin, S.; Ang, H. G. Vapor Pressure of Explosives: A Critical Review. Propellants Explos. Pyrotech. 2012, 37, 12–23.

    2011

    • ​​Suceska, M.; Ang, H. G.; Chan, H. Y. Modification of BKW EOS Introducing Density-Dependent Molecular Covolumes Concept. Mater. Sci. Forum 2011, 673, 47–52.

    2010

    • ​​Santhosh, G.; Ang, H. G. Compatibility of Ammonium Dinitramide with Polymeric Binders Studied by Thermoanalytical Methods. Int. J. Energ. Mater. Chem. Propul. 2010, 9, 27–41.

    2009

    • Matyáš, R.; Pachman, J.; Ang, H.-G. Study of TATP: Spontaneous Transformation of TATP to DADP – Full Paper. Propellants Explos. Pyrotech. 2009, 34, 484–488.​​

    2008

    • ​​Santhosh, G.; Ang, H. G. Synthesis and Kinetic Analysis of Isothermal and Non-Isothermal Decomposition of Ammonium Dinitramide Prills. J. Therm. Anal. Calorim. 2008, 94, 263–270.
    • Santhosh, G.; Poh, R. C. T.; Ang, H. G. Thermal Decomposition Kinetics of Ammonium Dinitramide–Guanylurea Dinitramide Mixture Analyzed by Isoconversional Methods. Thermochim. Acta 2008, 480, 43–48.
    • Muthurajan, H.; Ang, H. G. Software Development for the Detonation Product Analysis of High Energetic Materials – Part I. Cent. Eur. J. Energ. Mater. 2008, 5, 19–35.
    • Matyáš, R.; Pachman, J.; Ang, H.-G. Study of TATP: Spontaneous Transformation of TATP to DADP. Propellants Explos. Pyrotech. 2008, 33, 89–91.

    2007

    • ​​Pisharath, S.; Ang, H. G. Synthesis and Thermal Decomposition of GAP–Poly(BAMO) Copolymer. Polym. Degrad. Stab. 2007, 92, 1365–1377.​​
    • Pisharath, S.; Ang, H. G. Thermal Decomposition Kinetics of a Mixture of Energetic Polymer and Nitramine Oxidizer. Thermochim. Acta 2007, 459, 26–33.

    2006

    • Maheshkumar, M. V.; Joseph, M. J.; Sreekumar, K.; Ang, H.-G. Synthesis and Characterization of Poly BAMO Suitable for Binder Application. Chin. J. Energ. Mater. 2006, 14, 411–415.

    2005

    • Santhosh, G.; Ang, H. G. Propellant Formulations Based on Energetic Oxidizers, Binders and Fuels – A Computational Approach for the Performance Evaluation. In Theory and Practice of Energetic Materials; Wang, Y., Huang, P., Li, S., Eds.; Science Press USA Inc.: Beijing, 2005; Vol. VI, pp 825–833. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

    201​9

    • Chan, H.Y.; Suceska, M.; Zhang, Q.; Yeo, K.L.; Hng, H. H.   Afterburn modeling of nanothermite composites. 21st Biennial Conference of the APS Topical Group on Shock Compression of Condensed Matter, Portland,OR, USA,  June 16 -21, 2019.
    • ​​Nie, H.; Valluri, S.K.; Pisharath,S.; Hng, H. H.; Schoenitz, M.;Dreizin, E.L. The effect of fluoropolymer coating on ignition and combustion of Al-Mg alloys. Europyro 2019/44th IPS seminar, Tours, France, June 3-7, 2019. ​​

    201​8

    • ​​Stimac,B.; Suceska, M.; Chan,H.Y. On existence of formic and isocyanic acids in detonation products. 21th International Seminar on New Trends in Research of Energetic Materials, University of Pardubice, Czech Republic, April 17–20, 2018. ​​
    • Chan, H.Y.; Suceska, M.; Hng, H.H.   Modeling the violence of thermal cookoff events using an engineering approach. Gordon Research Conference on Energetic Materials, Newry,ME, USA,  June 3-8, 2018.
    201​7

    • ​​Nimesh, S.; Sudheer, K. A.; Leow, D. J., Chong, C. C.; Hng, H. H. Synthesis, Characterization and Pressure-time analysis of Energetic derivatives of 4-nitriminotriazole.4th Korean International Symposium on High Energy Materials (KISHEM) & 2017- International Autumn Seminar on Propellants, Explosives and Pyrotechnics (IASPEP),Yonsei University, Seoul, Korea, Aug 29 – Sep 2, 2017. ​​
     
    • ​​Chan, H.Y.; Suceska, M. Numerical modeling of slow and fast cookoff. 4th Korean International Symposium on High Energy Materials (KISHEM) & 2017- International Autumn Seminar on Propellants, Explosives and Pyrotechnics (IASPEP),Yonsei University, Seoul, Korea, Aug 29 – Sep 2, 2017. ​​
    • ​​Chen, E. L.; Zhang, Q.; Seng, Y.S. Modeling the Response of RDX-Based Explosives to Bullet Impact. 48th International Annual Conference of ICT, Karlsruhe, Germany, June 27-30, 2017.
    • ​​Chan, H. Y.; Suceska, M.; Tan, M.L.; Chong, C.C. Modeling of ignition and combustion of Al/Fe2O3/HTPB nanothermite composite. European Materials Research Society E-MRS 2017 Spring Meeting,Strasbourg, France, May 22-26, 2017.
    • Tan, M.L., Pisharath, S., Sasidharan, N. and Hng, H. H. Thermo-kinetic Studies of Aluminum/ Nickel Oxide Nanothermites. European Materials Research Society E-MRS 2017 Spring Meeting, Strasbourg, France, May 22-26, 2017.
    • ​​Chan, H.Y.; Suceska, M. An engineering approach to modeling sub-detonative events. 20th International Seminar on New Trends in Research of Energetic Materials , University of Pardubice, Czech Republic, April 26-28, 2017.

    201​6

    • ​​Nimesh, S.; Pisharath, S.; Zhang, F.; Ang, H.-G. Compatibility Investigations on Novel Energetic Formulations of Nitrogen Rich Azole [Bistetrazolylamine(BTA)]. 2016 Insensitive Munitions & Energetic Materials Technology Symposium, Tennessee, USA, September 12–15, 2016. ​​
    • Tan, M.L., Pisharath, S., Zhang, F., Sasidharan, N. and Ang, H.G.  Effect of self-assembly on the combustion and sensitivity of aluminum/ iron oxide nanothermites. 42nd International Pyrotechnic Society Seminar, Grand Junction, Colorado, USA,  July 10-15, 2016

    201​5

    • ​​Sućeska, M.; Matečić Mušanić, S.; Chan, H. Y. S.; Fiamengo Houra, I.; Rajić Linarić, M. Applicability of Model-Free Methods and Thermal Analysis Data for Studying Decomposition Kinetics of Double Base Propellants. 18th International Seminar on New Trends in Research of Energetic Materials, University of Pardubice, Czech Republic, April 15–17, 2015.​​

    2014

    • ​​Suceska, M.; Ang, H. G.; Chan, H. Y. Can the accuracy of BKW EOS be improved? 15th International Detonation Symposium, San Francisco, USA, July 13–18, 2014.​​

    2012

    • ​​Muthurajan, H.; Teo, Z.; Ang, H. G. Development of Direct Write Technology for Complex Filled Pattern Using 3-Axis Desktop Robot and Pneumatic System. 56th Annual Fuze Conference, Baltimore, USA, May 14–16, 2012.

    2011

    • Pisharath, S.; Ang, H. G. Energetics Polymers: Binders & Plasticizers. Tailoring Advanced Energetics Materials Workshop, University of Edinburgh, UK, June 21–22, 2011.
    • ​​Santhosh, G.; Ang, H. G. Oxidizers and Fuels in the Development of Future Propellants. Tailoring Advanced Energetics Materials Workshop, University of Edinburgh, UK, June 21–22, 2011.
    • ​​Ang, H. G. EnRI and Its Future Research Interests. Tailoring Advanced Energetics Materials Workshop, University of Edinburgh, UK, June 21–22, 2011.​​
    • ​​Muthurajan, H.; Teo, Z.; Poh, R. C. T.; Ang, H. G. Simultaneous Streak and Framing Imaging for Performance Evaluation of Composition C-4. 37th International Pyrotechnics Seminar, Reims, France, May 17–19, 2011; pp 620–625.
    • ​​Chan, H. Y. S.; Suceska, M.; Ang, H. G. Effect of Covolumes on Detonation Properties of CHNO Explosives Using BKW and Modified BKW EOS. 14th International Seminar on New Trends in Research of Energetic Materials, University of Pardubice, Czech Republic, April 13–15, 2011.

    2010

    • ​​Suceska, M.; Ang, H. G.; Chan, H. Y. Modification of BKW EOS Introducing Density-Dependent Molecular Covolumes Concept. 3rd International Symposium on Explosion, Shock Wave and High-Energy Reaction Phenomena (ESHP), Seoul National University, Seoul, South Korea, September 1–3, 2010.
    • Chen, Y. K.; Pisharath, S.; Ng, S. C.; Ang, H. G. Organosilane Assisted Encapsulation of Aluminum Particles with GAP Polymer. 41st International Annual Conference of ICT, Karlsruhe, Germany, June 29–July 2, 2010.​​

    2009

    • ​​Muthurajan, H.; Ang, H. G. Software Package Development for the Computation of Activation Energy Using Iterative Method and Integration Technique. 40th International Annual Conference of ICT, Karlsruhe, Germany, June 23–26, 2009.​​

    2008

    • Muthurajan, H.; Ang, H. G. Software for the Computation of Activation Energy from Differential Scanning Calorimetry and Related Safety Parameters of High Energetic Materials. 11th International Seminar on New Trends in Research of Energetic Materials, University of Pardubice, Czech Republic, April 9–11, 2008.​​

    2007

    • Santhosh, G.; Ang, H. G. Synthesis and Thermal Characterization of ADN Prills Obtained by Emulsion Crystallization. Insensitive Energetic Materials: Particles, Crystals, Composites, Fraunhofer ICT, Pfinztal, Germany, March 6–7, 2007; Teipel, U., Herrmann, M., Eds.; pp 286–299.

    2006

    • Ang, H. G.; Santhosh, G. Ammonium Dinitramide – A Promising Oxidizer. Defence Research and Development Seminar, Nanyang Technological University, Singapore, May 23, 2006.​​

    2005

    • ​​Ang, H. G. A New Generation of Energetic Materials [Keynote Lecture]. UK–Singapore Research Co-operation Seminar, A*STAR Biopolis, Singapore, September 12, 2005.
    • Ang, H.-G. Role of Metals in Future Explosives & Propellants. 14th Guided Weapons & Armament Seminar on “Enhanced Power of a 3G SAF”, DTTA Auditorium, Singapore, October 26, 2005.
    • Mangala, K.; Joseph, M. J.; Sreekumar, K.; Ang, H.-G. A New Synthetic Protocol for the Preparation of PolyAMMO Binder. 5th International High Energy Materials Conference, Hyderabad, India, November 23–25, 2005.
    • ​​Bahulayan, D.; Ang, H. G. An Efficient Green Solid Phase Nitration Technique for the Synthesis of 4,10-Dinitro-2,6,8,12-tetraoxa-4,10-diazaisowurtzitane (TEX). The International Autumn Seminar on Propellants, Explosives, and Pyrotechnics, Beijing, China, October 25–28, 2005.
    • ​​Pisharath, S.; Ang, H.-G. Decomposition Kinetics of Glycidyl Azide Polymer in the Presence of an Energetic Component. 8th International Seminar on New Trends in Research of Energetic Materials, University of Pardubice, Czech Republic, April 19–21, 2005.​​
    Ang, How-Ghee • G Santhosh

    ​Advances In Energetic Dinitramides
    An Emerging Class of Inorganic Oxidizers

    World Scientific Publishing Company, Singapore,
    Jan.2008, 180 pp, Hardcover

    - Monograph -
    ISBN: 978-981-277-203-9
    ISBN: 981-277-203-0
    monograph 1
    This monograph is about the chemistry and technology of an emerging class of inorganic oxidizers — the Dinitramide Salts. Each chapter discusses a distinct aspect of the oxidizers, of which ADN enjoys an extensive coverage (based on about 70% of published papers) owing to its potential applications in solid and liquid propellants. The following aspects of the dinitramide salts are covered in this book:​

    • ​Physico-chemical properties, reactivity, sensitivity and the toxicity of ADN
    • Various synthetic routes of the dinitramide salts
    • Spectral, thermal and other methods of characterization
    • Processing aspects such as crystallization, prilling, coating and microencapsulation studies
    • Thermal stability, decomposition, sensitivity, compatibility and mechanical behaviour of ADN
    • Combustion studies viz., burning rate, flame structure and degradation products
    • Applications of ADN and other dinitramide salts in low signature rocket propulsion, monopropellants and explosive compositions
    • Propellant formulations with energetic binders
    • A critical comparison of various solid composite propellants and ingredients​
    Ang, How-Ghee • Pisharath, Sreekumar

    ​Energetic Polymers
    Binders and Plasticizers for Enhancing Performance

    1. Edition - February 2012
    ca. 139.- Euro
    2012. XVI, 226 Pages, Hardcover
    108 Fig., 40 Tab.

    - Monograph -
    ISBN-10: 3-527-33155-7
    ISBN-13: 978-3-527-33155-0 - Wiley-VCH, Weinheim
    monograph 2
    This up-to-date overview provides the latest information on the performance, sensitivity, strength and processability aspects of propellants and explosive formulations, with the nature of polymer binder/plasticizer as the variable factor. Apart from applications, this monograph explores the principles behind energetic polymers, while discussing the synthetic routes and energetic characteristics of an individual family of energetic polymers. Furthermore, a number of case studies illustrate the role of energetic polymers in enhancing the performance of formulations as compared to their inert counterparts. The emphasis is on safety throughout, with practical guidance on how to safely handle and formulate as well as synthesize using energetic polymers.

    With the advent of a new generation of energetic polymers, this book is relevant to academic research and industrial R&D, as well as for industry and defense organizations.