R
Ravi Kumar
Researcher at Indian Institute of Technology Madras
Publications - 86
Citations - 1331
Ravi Kumar is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Ceramic & Crystallization. The author has an hindex of 17, co-authored 85 publications receiving 863 citations. Previous affiliations of Ravi Kumar include Indian Institutes of Technology.
Papers
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Ultra-low thermal expansion behavior of spark plasma sintered Sn-doped ZrMo2O8
Jayanth R. Ramamurthy,Ravi Kumar +1 more
TL;DR: In this paper, a reproducible process was demonstrated to synthesize cubic ZrMo2O8 from Zr Mo2O7(OH)2.2H2O by controlled heat treatment.
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Mechanical properties of ultra-high pressure sintered sphene (CaTiSiO5)
TL;DR: In this paper, the nano-mechanical properties of sphene sintered under ultra-high pressures in the order of 4 GPa were investigated using indentation techniques and an indentation hardness of 6.6 GPa and reduced elastic modulus of 112.3 GPa was reported at maximum load of 7 mN.
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Novel class of precursor-derived Zr–La–B–C(O) based ceramics containing nano-crystalline ultra-high temperature phases stable beyond 1600 °C
TL;DR: In this article, a novel ultra-high temperature resistant precursor-derived ceramic containing Zr, La, B, and C was synthesized through precursor modification of phenol formaldehyde resin, and the thermal stability and resistance to crystallization of the ceramic at a temperature of 1600°C was investigated and was found to be profoundly influenced by the boron content in the starting precursors.
Contents lists available at ScienceDirect
Mihai Stoica,Parthiban Ramasamy,Ivan Kaban,Sergio Scudino,Mircea Nicoară,Jonathan Wright,Ravi Kumar,Jürgen Eckert +7 more
TL;DR: In this paper, the relaxation behavior prior to crystallization, as well as the crystallization behavior, were studied by time-resolved X-ray diffraction using synchrotron radiation.
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Spark plasma sintered Si(Hf)OC nanocomposites exhibiting thermally stable dielectric behavior processed through precursor route
TL;DR: In this paper , the authors used hafnium n tetra butoxide precursor to modify silicon oxycarbide (SiOC) with an easy, novel, and economical procedure to synthesize Si(Hf)OC nanocomposites.