Search Results - "Lipke, David W"

The role of microstructure on high‐temperature oxidation behavior of hafnium carbide by Scott, Jonathan A., He, Xiaoqing, Lipke, David W.

“…Microstructure development of the products formed upon oxidation of hafnium carbide (HfCx, x = 0.65, 0.81, or 0.94) at 1300°C and 0.8 mbar oxygen pressure was…”
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High temperature oxidation regime transitions in hafnium carbide by Scott, Jonathan A., He, Xiaoqing, Lipke, David W.

“…Understanding the oxidation behavior of hafnium carbide is crucial to its application in extreme environments. In this work, the transition in high‐temperature…”
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Intragranular nanocomposite powders as building blocks for ceramic nanocomposites by Dempsey, Ryan D., He, Xiaoqing, Scott, Jonathan A., Lipke, David W.

“…A powder‐based bottom‐up processing scheme is introduced for the production of ceramic nanocomposites. Internal displacement reactions between solid solution…”
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Gas‐solid displacement reactions in the Ti–W–C system by Dempsey, Ryan D., Lipke, David W.

“…Displacement reactions between binary and ternary ceramics in the Ti–W–C system and reactive gaseous atmospheres are investigated in this work. Specifically,…”
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Ultra-high temperature oxidation of a hafnium carbide-based solid solution ceramic composite by Lipke, David W., Ushakov, Sergey V., Navrotsky, Alexandra, Hoffman, Wesley P.

“…•Cr3C2 is a useful transient liquid phase sintering agent for carbide-based ceramics.•Low atomic mass cations (e.g., Cr or Ti) can rapidly diffuse through…”
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Oxidation of Additively Manufactured ZrB2–SiC in Air and in CO2 at 700–1000 °C by Lakusta Marharyta, Timme, Nicholas M, Rafi, Abid H, Watts, Jeremy L, Leu, Ming C, Hilmas, Gregory E, Fahrenholtz, William G, Lipke, David W

“…Oxidation behavior of additively manufactured ZrB2–SiC in air and in CO2 is reported in the temperature range of 700–1000 °C. Observed scale morphologies in…”
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Near net-shape/net-dimension ZrC/W-based composites with complex geometries via rapid prototyping and Displacive Compensation of Porosity by Lipke, David W., Zhang, Yunshu, Liu, Yajun, Church, Benjamin C., Sandhage, Kenneth H.

“…ZrC/W-based composites with complex shapes have been fabricated by combining rapid prototyping methods for synthesizing porous WC preforms with the…”
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Intragranular Tungsten/Zirconium Carbide Nanocomposites via a Selective Liquid/Solid Displacement Reaction by Lipke, David W., Zhang, Yunshu, Cai, Ye, Sandhage, Kenneth H.

“…A selective liquid/solid displacement reaction has been used, for the first time, to convert non‐oxide ceramic solid solutions into composites comprised of…”
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The kinetics of incongruent reduction of tungsten carbide via reaction with a hafnium–copper melt by Liu, Yajun, Lipke, David W., Zhang, Yunshu, Sandhage, Kenneth H.

“…The reduction of WC into W by reaction with a Hf–Cu melt has been found to proceed by the formation of layers of W and HfC. The extent of such incongruent WC…”
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A novel technique for visualizing the intracellular localization and distribution of transported polyamines in cultured pulmonary artery smooth muscle cells by Aziz, Shewan M, Yatin, Mustafa, Worthen, David R, Lipke, David W, Crooks, Peter A

“…The use of a combination of monofluorescein adducts of spermidine (FL-SPD) and spermine (FL-SPM) with confocal laser scanning microscopy (CLSM) provides a…”
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Effects of aluminum metal flux heat treatments on titanium–tungsten mixed carbide powders by Dempsey, Ryan D., Lipke, David W.

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Shape Memory Alloys via Halide‐Activated Pack Equilibration by King, Andrew S., Dempsey, Ryan D., Lipke, David W.

“…Fabrication of shape memory alloy (SMA) components based on NiTi is challenging due to the precision with which elemental composition and microstructure must…”
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Pressureless sintering and properties of additively manufactured ZrB 2 –SiC by Lakusta, Marharyta, Timme, Nicholas M., Watts, Jeremy L., Fahrenholtz, William G., Hilmas, Gregory E., Lipke, David W.

“…Abstract Densification behavior, grain growth kinetics, mechanical and thermal properties of pressurelessly sintered zirconium diboride–silicon carbide (ZrB 2…”
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Alterations of growth factor transcripts in rat lungs during development of monocrotaline-induced pulmonary hypertension by Arcot, S S, Lipke, D W, Gillespie, M N, Olson, J W

“…Although pathologic and hemodynamic changes in monocrotaline (MCT)-induced pulmonary hypertension have been studied extensively, relatively little is known…”
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Coarctation Induces Alterations in Basement Membranes in the Cardiovascular System by Lipke, David W, Mccarthy, Kevin J, Elton, Terry S, Arcot, Santosh S, Oparil, Suzanne, Couchman, John R

“…A coarctation hypertensive rat model was used to examine the effects of elevated blood pressure on basement membrane component synthesis by cardiac myocytes…”
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Basic fibroblast growth factor alterations during development of monocrotaline-induced pulmonary hypertension in rats by Arcot, S S, Fagerland, J A, Lipke, D W, Gillespie, M N, Olson, J W

“…The chemical signaling pathways which orchestrate lung cell responses in hypertensive pulmonary vascular disease are poorly understood. The present study…”
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Localization of angiotensin-converting enzyme in the trout gill by Olson, K R, Lipke, D W, Kullman, D, Evan, A P, Ryan, J W

“…Angiotensin-converting enzyme (ACE) was localized in perfused trout gills by measuring gill extraction of two radiolabeled ACE inhibitors, 125I-351A (an…”
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Oxidative stress mediates monocrotaline-induced alterations in tenascin expression in pulmonary artery endothelial cells by Aziz, Shewan M., Toborek, Michal, Hennig, Bernhard, Mattson, Mark P., Guo, Hongtao, Lipke, David W.

“…Oxidative stress may be involved in monocrotaline (MCT)-induced endothelial cell injury and upregulation of extracellular matrix proteins in the pulmonary…”
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Temporal alterations in specific basement membrane components in lungs from monocrotaline-treated rats by Lipke, D W, Arcot, S S, Gillespie, M N, Olson, J W

“…The present study utilized the monocrotaline (MCT) model of pulmonary hypertension in rats to examine temporal alterations in steady-state levels of basement…”
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POLYAMINE REGULATORY PROCESSES AND OXIDATIVE STRESS IN MONOCROTALINE-TREATED PULMONARY ARTERY ENDOTHELIAL CELLS by AZIZ, SHEWAN M., TOBOREK, MICHAL, HENNIG, BERNHARD, ENDEAN, ERIC, LIPKE, DAVID W.

“…Alterations in polyamine metabolism may be a critical mechanism of monocrotaline (MCT)-induced structural remodeling of the pulmonary vasculature. In the…”
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