PubAg

Main content area

You searched for: Subject "heat treatment" Remove constraint Subject: "heat treatment"
Start Over

Search

14,821  Search Results

« Previous | 1 - 20 of 14,821 |
Number of results to display per page

Search Results

1. Simultaneous multi-product sterilization: Revisited, explored, and optimized

Author:
Simpson, R.; Ramirez, C.; Jiménez, D.; Almonacid, S.; Nuñez, H.; Angulo, A.
Source:
Journal of food engineering 2019 v.241 pp. 149-158
ISSN:
0260-8774
Subject:
heat treatment,   etc   ; energy; foods; temperature;     Show all 4 Subjects
Abstract:
... An interesting potential improvement and challenge in thermal processing of packaged foods is the implementation of simultaneous multi-product sterilization.The aim of this research was to analyze, explore, and optimize simultaneous multi-product sterilization through thermal processing simulation of packaged foods considering both constant (CRT) and variable retort temperature (VRT) profiles.The ...
DOI:
10.1016/j.jfoodeng.2018.08.007

2. The effect of grain boundary structure on sensitization behavior in a nickel-based superalloy

Author:
Sahu, Sandeep; Sharma, Nitin Kumar; Patel, Sanjeev Kumar; Mondal, K.; Shekhar, Shashank
Source:
Journal of materials science 2019 v.54 no.2 pp. 1797-1818
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; annealing; electrochemistry; superalloys;     Show all 4 Subjects
Abstract:
... The present work discusses the evolution of grain boundary structure during thermomechanical processing and its effect on sensitization behavior in a nickel-based superalloy. Alloy 600 was deformed to varied degrees of strain (4–25%) using hot rolling followed by annealing at 1000 °C for 10 min followed by water quenching. Structure of the grain boundary was analyzed with reference to various para ...
DOI:
10.1007/s10853-018-2919-7

3. Enhanced cyclability of silicon anode via synergy effect of polyimide binder and conductive polyacrylonitrile

Author:
Chen, Peng; Huang, Wenlong; Liu, Huitian; Cao, Zongjie; Yu, Yu; Liu, Yuansheng; Shan, Zhongqiang
Source:
Journal of materials science 2019 v.54 no.12 pp. 8941-8954
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; anodes; polyacrylonitrile; pyrolysis; silicon;     Show all 5 Subjects
Abstract:
... The damage of electrode integrity resulting from large volume change during cycling is the main reason that leads to the fast capacity loss of silicon anodes. Consequently, developing silicon anodes with integrated structure is critical for their practical application. Here, an integrated silicon anode with enhanced cycling ability using polyimide as binder and cyclized polyacrylonitrile as conduc ...
DOI:
10.1007/s10853-019-03518-4

4. A thermal processing map of a ZrCuNiAlEr bulk metallic glass in the supercooled liquid region

Author:
Li, Chunyan; Yin, Jinfeng; Ding, Juanqiang; Zhu, Fuping; Xu, Fei; Zhao, Yanchun; Kou, Shengzhong
Source:
Journal of materials science 2019 v.54 no.9 pp. 7246-7255
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; deformation; glass; liquids; temperature;     Show all 5 Subjects
Abstract:
... Thermal compression tests of (Zr₀.₆₃₃₆Cu₀.₁₄₅₂Ni₀.₁₀₁₂Al₀.₁₂)₉₇.₄Er₂.₆ bulk metallic glass (BMG) were performed at temperature of 410, 420, 430 and 440 °C and strain rates of 5 × 10⁻⁴, 10⁻³, 5 × 10⁻³ and 10⁻² s⁻¹, and a thermal processing map was constructed in the supercooled liquid region. The results indicate that in low strain rate regions (5 × 10⁻⁴–10⁻³ s⁻¹), the processing efficiency range i ...
DOI:
10.1007/s10853-019-03363-5

5. Temperature-affected microstructural stability of coherent cuboidal B2 particles in precipitation-strengthened body-centered-cubic Al0.7CoCr2FeNi high-entropy alloy

Author:
Ma, Yue; Hao, Jiamiao; Wang, Qing; Zhang, Chuan; Li, Chunling; Dong, Chuang
Source:
Journal of materials science 2019 v.54 no.11 pp. 8696-8710
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; alloys; brittleness; microstructure; particle size; physical phases; temperature;     Show all 7 Subjects
Abstract:
... This present work investigated the temperature-affected microstructural stability of coherent cuboidal B2 nanoprecipitates in the body-centered-cubic (BCC)-based Al₀.₇CoCr₂FeNi high-entropy alloy with temperature. Alloy specimens were prepared by suction-cast processing and then heat-treated at different temperatures of 673–1273 K for 2 h, respectively. It was found that this coherent microstructu ...
DOI:
10.1007/s10853-019-03459-y

6. Dissolution of antiphase domain boundaries in GaAs on Si(001) via post-growth annealing

Author:
Barrett, C. S. C.; Atassi, A.; Kennon, E. L.; Weinrich, Z.; Haynes, K.; Bao, X.-Y.; Martin, P.; Jones, K. S.
Source:
Journal of materials science 2019 v.54 no.9 pp. 7028-7034
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; activation energy; annealing; silicon; temperature; vapors;     Show all 6 Subjects
Abstract:
... GaAs-on-Si epitaxial crystal quality has historically been limited by a number of growth-related defects. In particular, antiphase domain boundaries (APBs) can nucleate at the GaAs/Si interface and propagate throughout the entire GaAs layer. Still little is known about how thermal processing can affect the APB density in GaAs. In this study, GaAs was grown on nominally on-axis Si(001) by metal–org ...
DOI:
10.1007/s10853-019-03353-7

7. Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using 23Na nuclear magnetic resonance

Author:
Morita, Ryohei; Gotoh, Kazuma; Kubota, Kei; Komaba, Shinichi; Hashi, Kenjiro; Shimizu, Tadashi; Ishida, Hiroyuki
Source:
Carbon 2019 v.145 pp. 712-715
ISSN:
0008-6223
Subject:
heat treatment,   etc   ; carbon; carbonization; nuclear magnetic resonance spectroscopy; sodium; temperature;     Show all 6 Subjects
Abstract:
... The metallic property of sodium clusters stored in hard carbon (HC) was investigated by 23Na NMR using various HC samples prepared over a range of dehydration and carbonization temperatures. The fully sodiated sample prepared at higher carbonization temperature shows a higher 23Na NMR shift associated with Na clusters. Na in HC prepared at 2000 °C shows almost the same shift as sodium metal. A hig ...
DOI:
10.1016/j.carbon.2019.01.080

8. Effect of 0.4 wt% yttrium addition and heat treatment on the high-temperature compression behavior of cast AZ80

Author:
Ren, Lingbao; Zhou, Mingyang; Zhang, Yuwenxi; Boehlert, Carl J.; Quan, Gaofeng
Source:
Journal of materials science 2019 v.54 no.7 pp. 5757-5772
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; activation energy; alloys; annealing; deformation; temperature; yttrium;     Show all 7 Subjects
Abstract:
... The effects of 0.4 wt% yttrium (Y) addition, annealing, and annealing + aging on the hot compression behavior of cast AZ80 were studied at strain rates between 10⁻⁴ and 10⁻² s⁻¹ and temperatures ranging between 573 and 673 K. The apparent activation energies of the as-cast AZ80 and AZ80 + 0.4Y were 122 and 182 kJ/mol, respectively. Shear bands formed in each alloys. Compared with the as-cast AZ80, ...
DOI:
10.1007/s10853-018-3154-y

9. Lightweight, three-dimensional carbon Nanotube@TiO2 sponge with enhanced microwave absorption performance

Author:
Mo, Zichao; Yang, Rongliang; Lu, Dongwei; Yang, Leilei; Hu, Qingmei; Li, Hongbian; Zhu, Hai; Tang, Zikang; Gui, Xuchun
Source:
Carbon 2019 v.144 pp. 433-439
ISSN:
0008-6223
Subject:
heat treatment,   etc   ; absorption; carbon; crystal structure; foams; hydrolysis; titanium dioxide;     Show all 7 Subjects
Abstract:
... Porous, spongy absorbers are considered to be the most promising candidates for lightweight and highly efficient microwave absorption material. However, conventional sponges or foams reported previously are difficult to meet the high performance requirements. Here, a lightweight (42 mg/cm3), porous CNT@TiO2 sponge with core-shell structure CNT/TiO2 was successfully prepared via a simple combinatio ...
DOI:
10.1016/j.carbon.2018.12.064

10. New insights into the effect of thermal treatment on sludge dewaterability

Author:
Liu, Rongzhan; Yu, Xiao; Yu, Panfen; Guo, Xuesong; Zhang, Bin; Xiao, Benyi
Source:
The Science of the total environment 2019 v.656 pp. 1082-1090
ISSN:
0048-9697
Subject:
heat treatment,   etc   ; fluorescence; humic acids; polysaccharides; sludge; temperature;     Show all 6 Subjects
Abstract:
... The changes of the sludge dewaterability in different thermal treatments and the factors influencing these changes were examined in this study. The experimental results showed that the sludge dewaterability deteriorated by the thermal pretreatment with temperature range from 20 to 170 °C, but the deterioration decreased above a certain temperature threshold (120–150 °C). The factors which affected ...
DOI:
10.1016/j.scitotenv.2018.11.436

11. High-precision isothermal dilatometry as tool for quantitative analysis of precipitation kinetics: case study of dilute Al alloy

Author:
Enzinger, R.; Hengge, E.; Sprengel, W.; Würschum, R.
Source:
Journal of materials science 2019 v.54 no.6 pp. 5083-5091
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; alloys; aluminum; case studies; models; quantitative analysis; temperature;     Show all 7 Subjects
Abstract:
... An in-depth case study of precipitation kinetics for alloys is presented utilizing recent progress in high-precision isothermal dilatometry by measuring relative length changes down to the range of [Formula: see text] and covering large timescales exceeding [Formula: see text] s. Using a dilute Al–Mg–Si alloy as model system, the different phases that form during isothermal heat treatment could qu ...
DOI:
10.1007/s10853-018-03210-z

12. Microstructural origins of martensite stabilization in Ni49Co1Mn37.5Sn6.5In6 metamagnetic shape memory alloy

Author:
Czaja, P.; Przewoźnik, J.; Kowalczyk, M.; Wierzbicka-Miernik, A.; Morgiel, J.; Maziarz, W.
Source:
Journal of materials science 2019 v.54 no.5 pp. 4340-4353
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; Gibbs free energy; alloys; annealing; cooling; magnetism; temperature;     Show all 7 Subjects
Abstract:
... Ordering effects in the Ni₄₉Co₁Mn₃₇.₅Sn₆.₅In₆ alloy were studied by subjecting the alloy to annealing at 1220 K followed by water quenching and to subsequent annealing at 1070 K followed by slow cooling. Martensitic transformation temperature increases by 10 K owing to the slow cooling process, which further invites a change in the martensite structure: 6M → 10M. Across the transformation, regardl ...
DOI:
10.1007/s10853-018-3112-8

13. Structural evolution in a melt-quenched zeolitic imidazolate framework glass during heat-treatment

Author:
Zhang, Jiayan; Longley, Louis; Liu, Hao; Ashling, Christopher W.; Chater, Philip A.; Beyer, Kevin A.; Chapman, Karena W.; Tao, Haizheng; Keen, David A.; Bennett, Thomas D.; Yue, Yuanzheng
Source:
Chemical communications 2019 v.55 no.17 pp. 2521-2524
ISSN:
1364-548X
Subject:
heat treatment,   etc   ; chemical reactions; coordination polymers; crystallization; enthalpy; glass; zinc;     Show all 7 Subjects
Abstract:
... A pronounced enthalpy release occurs around 1.38Tg in the prototypical metal–organic framework glass formed from ZIF-4 [Zn(C₃H₃N₂)₂], but there is no sign for any crystallization (i.e., long-range ordering) taking place. The enthalpy release peak is attributed to pore collapse and structural densification. ...
DOI:
10.1039/c8cc09574d

14. Sculpturing graphene wrinkle patterns into compliant substrates

Author:
Sampathkumar, Krishna; Androulidakis, Charalampos; Koukaras, Emmanuel N.; Rahova, Jaroslava; Drogowska, Karolina; Kalbac, Martin; Vetushka, Aliaksei; Fejfar, Antonin; Galiotis, Costas; Frank, Otakar
Source:
Carbon 2019
ISSN:
0008-6223
Subject:
heat treatment,   etc   ; geometry; graphene; heat; polymers; vapors; wavelengths;     Show all 7 Subjects
Abstract:
... In this work we present a fabrication process for sculpturing wrinkled structures into soft polymers by thermal treatment of graphene flakes. This is accomplished by the imposition of a biaxial compressive stress field to the graphene flakes by controlled heating of graphene/polymer composites. The wrinkling patterns (amplitude, wavelength) are linearly related to the thickness of the graphene as ...
DOI:
10.1016/j.carbon.2019.02.041

15. Mechanisms of temper embrittlement and recovery in cast HY-80 high-strength low-alloy steel

Author:
Draper, M.; Ankem, S.
Source:
Journal of materials science 2019 v.54 no.3 pp. 2601-2611
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; carbides; carbon; chemical composition; phosphorus; steel; temperature;     Show all 7 Subjects
Abstract:
... To better understand the mechanisms and rate of temper embrittlement in cast HY-80 high-strength low-alloy steel, samples were subjected to embrittlement and recovery treatments after a typical industrial heat treatment. The embrittlement rate was studied between 315 and 565 °C at varied logarithmic time intervals up to 10000 min. The embrittlement recovery rate was studied between 593 and 704 °C ...
DOI:
10.1007/s10853-018-2973-1

16. Tailored crystalline width and wall thickness of an annealed 3D carbon foam composites and their mechanical properties

Author:
Marx, J.; Roth, S.; Brouschkin, A.; Smazna, D.; Mishra, Y.K.; Schulte, K.; Adelung, R.; Fiedler, B.
Source:
Carbon 2019 v.142 pp. 60-67
ISSN:
0008-6223
Subject:
heat treatment,   etc   ; carbon; foams; mechanical properties; models; nanocomposites; nanomaterials;     Show all 7 Subjects
Abstract:
... Carbon nanostructures in form of 3D carbon foams are mainly popular in materials community because of their ultralow densities, variable morphologies, and remarkable properties, etc. One of these foams is Aerographite, which exhibits a tetrapodal interconnected morphology. Similar to other synthetic carbon structures, the lattice defects are formed during the synthesis of Aerographite, which can b ...
DOI:
10.1016/j.carbon.2018.10.004

17. General methodology for the chemoselective N-alkylation of (2,2,6,6)-tetramethylpiperidin-4-ol: Contribution of microwave irradiation

Author:
Membrat, Romain; Vasseur, Alexandre; Giordano, Laurent; Martinez, Alexandre; Nuel, Didier
Source:
Tetrahedron letters 2019 v.60 no.3 pp. 240-243
ISSN:
0040-4039
Subject:
heat treatment,   etc   ; alkylation; chemoselectivity; microwave radiation; moieties; organobromine compounds;     Show all 6 Subjects
Abstract:
... A convenient method to access a broad variety of N-alkyl-(2,2,6,6)-tetramethylpiperidin-4-ol compounds is reported. The thermal treatment of a mixture of (2,2,6,6)-tetramethylpiperidin-4-ol and allyl or benzyl bromide derivatives gave the corresponding N–alkylated compounds in good yields while leaving the hydroxyl functional group intact. Whereas 40 h were needed to reach complete conversion, mic ...
DOI:
10.1016/j.tetlet.2018.12.020

18. Prussian blue coupling with zinc oxide as a protective layer: an efficient cathode for high-rate sodium-ion batteries

Author:
Qiao, Yun; Wei, Gangya; Cui, Jiabao; Zhang, Mingming; Cheng, Xiaoguang; He, Dandan; Li, Shuan; Liu, Yang
Source:
Chemical communications 2019 v.55 no.4 pp. 549-552
ISSN:
1364-548X
Subject:
heat treatment,   etc   ; batteries; cathodes; chemical reactions; zinc oxide;     Show all 5 Subjects
Abstract:
... Prussian blue coupled with zinc oxide has been synthesized via a facial heat treatment process. As a cathode for sodium ion batteries, the PB coupled with ZnO delivers an excellent rate performance, retaining 86.2 mA h g⁻¹ at 10 A g⁻¹ and a high reversible capacity of 89.9 mA h g⁻¹ at 0.2 A g⁻¹ after 500 cycles. ...
DOI:
10.1039/c8cc07951j

19. Characterization of SLM-fabricated Inconel 718 after solid solution and precipitation hardening heat treatments

Author:
Tucho, Wakshum M.; Hansen, Vidar
Source:
Journal of materials science 2019 v.54 no.1 pp. 823-839
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; crystallization; hardness; homogenization; melting; microstructure; temperature;     Show all 7 Subjects
Abstract:
... The microstructure and hardness of solid solution heat treated (ST) and precipitation hardened Inconel 718 parts fabricated with selective laser melting are investigated. The temperature range for the ST is between 970 and 1250 °C, while the two-step precipitation hardening was done at 760 and 650 °C, each for 10 h. The result demonstrates the effects of homogenization and consequently the effects ...
DOI:
10.1007/s10853-018-2851-x

20. Creep strength contribution due to precipitation hardening in copper–cobalt alloys

Author:
Sui, Fangfei; Sandström, Rolf
Source:
Journal of materials science 2019 v.54 no.2 pp. 1819-1830
ISSN:
0022-2461
Subject:
heat treatment,   etc   ; creep strength; model validation; models; stainless steel;     Show all 5 Subjects
Abstract:
... In spite of its huge technical significance, there does not seem to be consensus about how to model the precipitation contribution to the creep strength. Most contributions in the literature are based on a constant internal stress (also called back stress or threshold stress) from the precipitation. It is well-known and it will also be demonstrated in the paper that this assumption is at variance ...
DOI:
10.1007/s10853-018-2922-z