Search Results - "Zawada, P."

Coolant strategy influence on tool life and surface roughness when machining ADI by Eltaggaz, A., Zawada, P., Hegab, H. A., Deiab, I., Kishawy, H. A.

“…Austempered ductile iron alloys (ADI) are an interesting class of materials because of their unique microstructure and mechanical properties. When subjected to…”
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Behavioural responses of beef cattle to different grazing systems and the influence of these responses on water productivity of livestock in a tropical savannah by Pereira Barsotti, M., de Almeida, R. Giolo, Motta Macedo, M.C., Zawada, P., Werner, J., Dickhoefer, U.

“…•Shading in agrosilvopastoral systems affects the daily pattern of animal behaviour.•Pastures in agrosilvopastoral contain less structural foraging…”
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Characterization and High-Temperature Mechanical Behavior of an Oxide/Oxide Composite by Zawada, Larry P., Hay, Randall S., Lee, Shin S., Staehler, James

“…An oxide/oxide ceramic fiber‐matrix composite (CMC) has been extensively characterized for high‐temperature aerospace structural applications. This CMC is…”
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Frequency dependence of high-cycle fatigue behavior of CVI C/SiC at room temperature by Staehler, James M., Mall, Shankar, Zawada, Larry P.

“…Effects of loading frequency on high-cycle fatigue behavior of a chemical vapor infiltrated carbon fiber reinforced silicon carbide composite were…”
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Fatigue Behavior of Hi-Nicalon Type-S™/BN/SiC Ceramic Matrix Composites in a Combustion Environment by Kim, Ted T., Mall, Shankar, Zawada, Larry P.

“…The fatigue behavior of Hi‐Nicalon Type‐S™/BN/SiC ceramic matrix composites (CMCs) was investigated in a combustion environment. Two versions of this CMC were…”
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Performance of Four Ceramic-Matrix Composite Divergent Flap Inserts Following Ground Testing on an F110 Turbofan Engine by Staehler, James M., Zawada, Larry P.

“…Four ceramic‐matrix composite flap inserts were evaluated following ground testing on a General Electric F110 turbofan engine. Three of the composites…”
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Consequence of Intermittent Exposure to Moisture and Salt Fog on the High-Temperature Fatigue Durability of Several Ceramic-Matrix Composites by Zawada, Larry P., Staehler, James, Steel, Steve

“…Fatigue behavior of four ceramic‐matrix composites (CMCs) was documented at 1000°C, and a fifth composite was documented at 1200°C. Additional fatigue…”
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Notched Fracture Behavior of an Oxide/Oxide Ceramic-Matrix Composite by Kramb, Victoria A., John, Reji, Zawada, Larry P.

“…The fracture behavior of an oxide/oxide ceramic‐matrix composite, alumina/alumina‐silica (Nextel610/AS), was investigated at 23° and 950°C using a single edge…”
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Degradation of Nextel™ 610‐based oxide‐oxide ceramic composites by aluminum oxychloride decomposition products by Hay, Randall S., Keller, Kristin A., Zawada, Larry P., Jacobson, Nathan S., Fair, Geoff E.

“…Nextel™ 610 alumina fibers and alumina‐YAG (yttrium‐aluminum garnet) matrices were used to make oxide‐oxide ceramic matrix composites (CMCs) with and without…”
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Combined Effect of Salt Water and High-Temperature Exposure on the Strength Retention of Nextel™720 Fibers and Nextel™720-Aluminosilicate Composites by Parthasarathy, Triplicane A., Cinibulk, Michael K., Zawada, Larry P.

“…The relative contribution of fiber strength loss to reported degradation in the mechanical behavior of Nextel™720‐aluminosilicate composites after exposure to…”
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Stresses Due to Temperature Gradients in Ceramic-Matrix-Composite Aerospace Components by John, Reji, Zawada, Larry P., Kroupa, Joseph L.

“…Ceramic‐matrix composites (CMCs) are being considered as replacement materials for divergent flaps and seals in advanced aerospace turbine engines. During…”
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Evaluation of Oxide-Oxide Composites in a Novel Combustor Wall Application by Parthasarathy, Triplicane A., Zawada, Larry P., John, Reji, Cinibulk, Michael K., Kerans, Ronald J., Zelina, Joseph

“…Oxide–oxide composites were evaluated in a novel combustor design requiring higher wall temperatures than the conventional combustors. The evaluation was based…”
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Simultaneous Fatigue and Combustion Exposure of a SiC/SiC Ceramic Matrix Composite by Kim, Ted T., Mall, Shankar, Zawada, Larry P., Jefferson, George

“…A melt-infiltrated (MI) woven ceramic matrix composite consisting of a silicon carbide matrix reinforced by boron nitride coated Hi-Nicalon type STM SiC fiber,…”
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Effects of Combustor Rig Exposure on a Porous-Matrix Oxide Composite by Mattoni, Michael A., Yang, James Y., Levi, Carlos G., Zok, Frank W., Zawada, Larry P.

“…The present study explores the effects of exposure in a laboratory combustor on microstructural stability and property retention of an all‐oxide…”
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Mechanical Behavior and High-Temperature Performance of a Woven Nicalon™/Si-N-C Ceramic-Matrix Composite by Lee, S. Steven, Zawada, Larry P., Staehler, James M., Folsom, Craig A.

“…A modern ceramic‐matrix composite (CMC) has been extensively characterized for a high‐temperature aerospace turbine‐engine application. The CMC system has a…”
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Combined Effects of Exposure to Salt (NaCl) Water and Oxidation on the Strength of Uncoated and BN-Coated Nicalon™ Fibers by Parthasarathy, Triplicane A., Folsom, Craig A., Zawada, Larry P.

“…The environmental stability of uncoated and boron nitride‐coated (BN‐coated) Nicalon fiber has been investigated by studying the effect of annealing in air at…”
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Tensile behavior of SiC/C and Rene' 41 following isothermal exposure and thermal fatigue by Pierce, J L, Zawada, L P, Srinivasan, R

“…The performance of a coated silicon carbide/carbon composite under isothermal and thermal fatigue conditions was investigated. The material studied is known as…”
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Off-axis creep behavior of oxide/oxide Nextel720/AS-0 by Buchanan, Dennis J, John, Reji, Zawada, Larry P

“…Oxide/oxide ceramic-matrix composites (CMC) are being demonstrated in engine components that are axisymmetric in shape, and subject to axisymmetric…”
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Relief peels in the study of palaeoflood slack-water sediments by Hattingh, J., Zawada, P.K.

“…The use of slack-water sediments as palaeostage indicators in palaeoflood hydrological analysis requires detailed sedimentological description. Conventional…”
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Tensile Properties of Nicalon Fiber-Reinforced Carbon Following Aerospace Turbine Engine Testing by Pierce, J L, Zawada, L P, Srinivasan, R

“…The durability of coated Nicalon silicon carbide fiber-reinforced carbon (SiC/C) as the flap and seal exhaust nozzle components in a military aerospace turbine…”
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