Results 101 to 110 of about 51,152 (304)

Spectroscopic Photoresponse of the Passive Film Formed on Iron [PDF]

, 1986
Spectroscopic photoresponse of the passive film formed on iron in neutral borate solution was studied. The spectroscopic three parameter reflectometry and the photoelectrochemical technique were employed to obtain the spectra of absorption coefficient ...
Azumi, Kazuhisa, Sato, Norio, Ohtsuka, Toshiaki   +2 more
core   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Caracterização por XPS de filmes passivos formados sobre aços de baixa liga em meio de bicarbonato XPS characterization of passive films formed on mild steels in bicarbonate medium

Química Nova, 2005
Passive films formed in bicarbonate solutions on carbon steel, chromium steel and high speed steel have been characterized by XPS. The passive films formed on chromium and high speed steels showed superior protective properties than those formed on ...
Valéria Almeida Alves, Christopher Michael Ashton Brett, Maria de Fátima Montemor   +2 more
doaj   +1 more source

Mott-Schottky Plot of the Passive Film Formed on Iron in Neutral Borate and Phosphate Solutions [PDF]

, 1987
The semiconductive properties of the passive film formed on iron were investigated by measuring the impedance of passivated iron electrodes in neutral borate and phosphate solutions.
Azumi, Kazuhisa, Sato, Norio, Ohtsuka, Toshiaki   +2 more
core   +1 more source

Self‐Adaptive Anhydrous Passivation Mitigates Open‐Circuit Voltage Loss in Pb‐Sn Mixed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
In this report, a self‐adaptive anhydrous passivation strategy is introduced by incorporating trimellitic anhydride (TMAH) into the perovskite precursor. In situ hydrolysis of TMAH yields trimellitic acid (TMA); ‐C═O/‐COO− groups of TMAH/TMA form a chelate with undercoordinated Pb2+/Sn2+, regulate nucleation, promote (100) orientation, passivate ...
Md. Ataur Rahman, Md. Abdul Karim, Md. Emrul Kayesh, Siliang Cao, Shamim Ahmmed, Kiyoto Matsuishi, Ashraful Islam   +6 more
wiley   +1 more source

DeactivationandCorrosionResistanceofRebarinSimulatedPoreSolutionsofAlkaliActivatedSlag

工程科学与技术, 2015
:The semiconductor properties of the rebar passive film formed in the simulated pore solutions for different dosages of sodium hydroxide (NaOH) activated slag were investigated with free corrosion potential, Mott Schottky plots. The detrimental effect of
喻骁, 蒋林华, 高海浪, 于旭, 张雪颖   +4 more
doaj  

Effect of Nb contents on the passivation behavior of high-strength anti-seismic rebar in concrete environments

npj Materials Degradation
In this study, the surface analysis, cross-section analysis and electrochemical analysis were used to explore the formation mechanism of Nb contents on the passive film of high-strength anti-seismic rebar in simulated concrete pore solution.
Zeyun Zeng, Shangjun Gu, Jie Wang, Fulong Wei, Xiang Xie, Zhiying Li, Hui Yang, Changrong Li   +7 more
doaj   +1 more source

EFFECTS OF NITRITE ANIONS ON SURFACE PASSIVE FILM PROPERTIES FOR Q235 CARBON STEELS

, 2019
In this paper, for Q235 carbon steels in NaNO2 solutions with different concentrations of NO[Formula: see text], a passive film composed of mainly Fe2O3 was formed on the Q235 surface, and the effects of NO[Formula: see text] concentrations on the ...
DONG LIU, YONG ZHOU, PEI ZHANG, FUAN YAN, HUIJU HUANG   +4 more
core   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Aberration-corrected TEM study on the influence of HCO3−/ CO32− concentration and Cl− on FeCr15Ni15Mo2 alloy in alkaline solutions

Journal of Materials Research and Technology
Carbonation of concrete pore solution results in a drop of pH value and introduction of HCO3−/CO32−. The drop of pH has been identified as an important factor in causing general corrosion by destabilizing passive films on stainless steels.
Y.T. Xu, B. Zhang, X.X. Wei, Z.Y. Chen, X.L. Li, X.L. Ma   +5 more
doaj   +1 more source