Results 61 to 70 of about 441,291 (286)

Evolution of the Micropore Structure of Ammonium Perchlorate during Low-Temperature Decomposition and Its Combustion Characteristics

Applied Sciences, 2021
Ammonium perchlorate (AP) is a common oxidant in solid propellants, and its thermal decomposition characteristics at low temperatures (less than 240 °C) are key to the study of the thermal safety of propellants.
Haijun Zhang, Jianxin Nie, Gangling Jiao, Xing Xu, Shi Yan, Xueyong Guo, Tao Zhang   +6 more
doaj   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

Advanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik, Liliana I. Duarte, Malgorzata G. Makowska, Roland Brütsch, Andrej Bullemer, Ana Diaz, Mirko Holler, Andreas Menzel, Johannes Bertsch, Pavel Trtik   +9 more
wiley   +1 more source

Implementation and evaluation of permeability-porosity and tortuosity-porosity relationships linked to mineral dissolution-precipitation [PDF]

, 2015
Changes of porosity, permeability, and tortuosity due to physical and geochemical processes are of vital importance for a variety of hydrogeological systems, including passive treatment facilities for contaminated groundwater, engineered barrier systems (
Chiaberge, C., Claret, F., Claret, Francis, Mayer, K Ulrich, Mayer, K.U., Jacques, Diederik, Chiaberge, Christophe, Steefel, C.I., Xie, Mingliang, Mayer, K. Ulrich, Alt-Epping, Peter, Jacques, D., Steefel, Carl, Simunek, Jiri, Simunek, J.   +14 more
core   +2 more sources

Preparación y propiedades de materiales cerámicos bioinertes en el sistema Al₂O₃-TiO₂-SiO₂

Boletín de la Sociedad Española de Cerámica y Vidrio, 1998
Very fine and sinterable ceramic powders (100-600 nm) in the system Al2O3-TiO2-SiO2 were obtained by the method of cohydrolisis from organo-metallic precursors.
Boccaccini, A. R., Bossert, J., Spaseska, D., Milosevski, M., Milosevska, R.   +4 more
doaj  

Effects of Bond Coating on NiCrBSi-Mo Composite Functional Coating Properties in Plasma Spraying NiCrBSi-Mo/Ni Coating

Cailiao gongcheng, 2017
Nickel-based bond coating and composite functional coating were sprayed on leaf blade steel material FV520B successively by using air plasma spraying system.
DU Ji-yu, LI Fang-yi, LU Hai-yang, SHANG Jian-tong, LI Zhen   +4 more
doaj   +1 more source

Porosities of Mandelbrot Percolation [PDF]

Journal of Theoretical Probability, 2019
We study porosities in the Mandelbrot percolation process. We show that, almost surely at almost all points with respect to the natural measure, the mean porosities of the set and the natural measure exist and are equal to each other for all parameter values outside of a countable exceptional set. As a corollary, we obtain that, almost surely at almost
Berlinkov, A. (Artemi), Järvenpää, E. (Esa)   +1 more
openaire   +3 more sources

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Porosity-limited: A phase equilibrium investigation of selected source controls on the composition of melt batches generated by sequential melting of an average metapelite

, 2019
Dataset for porosity-limited ...
Matthew Jason Mayne (7107206), Jean-François Moyen (6179543), Gary Stevens (6293273)   +2 more
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Porosity-Enhanced Polymers from Hyper-Cross-Linked Polymer Precursors

, 2017
Hyper-cross-linked polymers (HCPs) have aroused great interest because of their potential applications in adsorbing greenhouse gases and volatile organic compounds.
Lei Li (29537), Hui Gao (169623), Lei Ding (186021), Hua Bai (145775), Feifei Xie (3691360), Wenqing Li (1421971)   +5 more
core   +1 more source