Search Results - "Parthasarathy, Triplicane A."

Modeling environmentally induced property degradation of SiC/BN/SiC ceramic matrix composites by Parthasarathy, Triplicane A., Cox, Brian, Sudre, Olivier, Przybyla, Craig, Cinibulk, Michael K.

“…The degradation of SiC‐based ceramic matrix composites (CMCs) in conditions typical of gas turbine engine operation proceeds via the stress rupture of fiber…”
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In situ Y2Si2O7 coatings on SiC fibers: Thermodynamic analysis and processing by Mogilevsky, Pavel, Boakye, Emmanuel E., Key, Thomas S., Parthasarathy, Triplicane A., Hay, Randall S., Cinibulk, Michael K.

“…It is shown using thermodynamic analysis and kinetic modeling that a processing window exists for the formation of Y2Si2O7 coatings on SiC. The proposed method…”
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Contribution to size effect of yield strength from the stochastics of dislocation source lengths in finite samples by Parthasarathy, Triplicane A., Rao, Satish I., Dimiduk, Dennis M., Uchic, Michael D., Trinkle, Dallas R.

“…Recent works show that the yield strength of metals increases steeply with decreasing sample size. In this work, it is shown that this sample size effect can…”
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Tailorable thermal expansion hybrid structures by Jefferson, George, Parthasarathy, Triplicane A., Kerans, Ronald J.

“…A design concept is presented for a macro or microstructure that combines materials with differing thermal expansion to achieve an overall effective expansion…”
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Interface Design for Oxidation-Resistant Ceramic Composites by Kerans, Ronald J., Hay, Randall S., Parthasarathy, Triplicane A., Cinibulk, Michael K.

“…Fiber‐reinforced ceramic composites achieve high toughness through distributed damage mechanisms. These mechanisms are dependent on matrix cracks deflecting…”
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A microstructure-sensitive location-specific design tool for predicting the yield and creep behavior of LSHR Ni-base superalloy by Parthasarathy, Triplicane A., John, Reji

“…A microstructure-sensitive model that predicts the strain-rate sensitive flow behavior as well as creep-strain life of a refractory Ni-base superalloy, Low…”
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Effectiveness of Monazite Coatings in Oxide/Oxide Composites after Long-Term Exposure at High Temperature by Keller, Kristin A., Mah, Tai-Il, Parthasarathy, Triplicane A., Boakye, Emmanuel E., Mogilevsky, Pavel, Cinibulk, Michael K.

“…The effectiveness of monazite (LaPO4) in providing an oxidation‐resistant weak fiber/matrix interface was evaluated in a fiber roving/thin…”
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Corrigendum to “A microstructure-sensitive location-specific design tool for predicting the yield and creep behavior of LSHR Ni-base superalloy” [Mater. Sci. Eng. A 712 (2018) 502–512] by Parthasarathy, Triplicane A., John, Reji

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The strength and dislocation microstructure evolution in superalloy microcrystals by Hussein, Ahmed M., Rao, Satish I., Uchic, Michael D., Parthasarathy, Triplicane A., El-Awady, Jaafar A.

“…In this work, the evolution of the dislocations microstructure in single crystal two-phase superalloy microcrystals under monotonic loading has been studied…”
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Characterization of Oxidized Polymer-Derived SiBCN Fibers by Cinibulk, Michael K., Parthasarathy, Triplicane A.

“…The oxidation behavior of a developmental amorphous SiBCN fiber was investigated. Fibers were heat‐treated in stagnant laboratory air at temperatures of…”
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Oxidation Behavior of Zirconium Diboride Silicon Carbide Produced by the Spark Plasma Sintering Method by Carney, Carmen M., Mogilvesky, Pavel, Parthasarathy, Triplicane A.

“…Dense samples of ZrB2–20 vol% SiC were successfully fabricated by spark plasma sintering without the use of sintering aids. Oxidation behavior of these samples…”
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Modeling Environmental Degradation of SiC-Based Fibers by Parthasarathy, Triplicane A., Przybyla, Craig P., Hay, Randall S., Cinibulk, Michael K.

“…Experimental data on grain growth and oxidation kinetics of SiC‐based fibers, as well as the accompanying strength degradation, in argon, air, and moist air…”
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Oxidation Resistance of Hafnium Diboride Ceramics with Additions of Silicon Carbide and Tungsten Boride or Tungsten Carbide by Carney, Carmen M., Parthasarathy, Triplicane A., Cinibulk, Michael K.

“…Dense samples of HfB2–SiC, HfB2–SiC–WC, and HfB2–SiC–WB were prepared by field‐assisted sintering. The WB and WC additives were incorporated by solid solution…”
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Evaluation of SiC/SiC minicomposites with yttrium disilicate fiber coating by Boakye, Emmanuel E., Key, Thomas S., Parthasarathy, Triplicane A., Keller, Kristin A., Opeka, Samuel J., Hay, Randall S., Cinibulk, Michael K.

“…Hi‐Nicalon‐S/α‐Y2Si2O7/SiC minicomposites were formed by polymer infiltration pyrolysis (PIP) and characterized by TEM, SEM fractography, tensile testing, and…”
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In situ Y2Si2O7 coatings on Hi‐Nicalon‐S SiC fibers: Phase formation and fiber strength by Boakye, Emmanuel E., Mogilevsky, Pavel, Key, Thomas S., Parthasarathy, Triplicane A., Keller, Kristin A., Opeka, Samuel J., Hay, Randall S., Cinibulk, Michael K., Corns, Randall

“…Y2Si2O7 coatings were formed on Hi‐Nicalon‐S SiC fibers by reaction of solution‐derived YPO4 coatings with glass SiO2 scales formed by fiber oxidation. Two…”
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Experimental investigation into the crack propagation in multiphase tantalum carbide ceramics by Schulz, Bradford C., Lee, HeeDong, Mogilevsky, Pavel, Weinberger, Christopher R., Parthasarathy, Triplicane A., Matson, Lawrence E., Smith, Chase, Thompson, Gregory B.

“…Tantalum carbide ceramics with high volume fractions of the ζ-Ta4C3 phase have been shown to exhibit high fracture strength and toughness as compared to those…”
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Thermal and Oxidation Response of UHTC Leading Edge Samples Exposed to Simulated Hypersonic Flight Conditions by Parthasarathy, Triplicane A., Petry, Melvin D., Cinibulk, Michael K, Mathur, Tarun, Gruber, Mark R.

“…Sharp leading edge (LE) samples of UHTC (20 vol%SiC–HfB2) and SiC were exposed to simulated hypersonic flight conditions using a direct‐connect scramjet rig…”
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Processing and Testing of RE2Si2O7 Fiber-Matrix Interphases for SiC-SiC Composites by Boakye, Emmanuel E., Mogilevsky, Pavel, Parthasarathy, Triplicane A., Keller, Kristin A., Hay, Randall S., Cinibulk, Michael K.

“…Rare‐earth disilicates (RE2Si2O7) are investigated for use as oxidation‐resistant alternatives to carbon or BN fiber–matrix interphases in ceramic matrix…”
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Process modeling of the low‐temperature evolution and yield of polycarbosilanes for ceramic matrix composites by Key, Thomas S., Wilks, Garth B., Parthasarathy, Triplicane A., King, Derek S., Apostolov, Zlatomir D., Cinibulk, Michael K.

“…The volatilization of polycarbosilanes is important to the processing and performance of polymer infiltration and pyrolysis‐based ceramic matrix composites…”
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Extraction of Weibull Parameters of Fiber Strength from Means and Standard Deviations of Failure Loads and Fiber Diameters by Parthasarathy, Triplicane A.

“…The errors in using an average fiber diameter to calculate the mean strength (ςm), Weibull reference strength (ς0), and Weibull modulus (m) from failure loads…”
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