scholarly journals A jamming-like mechanism of yield-stress increase caused by addition of nonmagnetizable particles to magnetorheological suspensions

2017 ◽  
Vol 61 (4) ◽  
pp. 601-611 ◽  
Author(s):  
Benjamin T. Wilson ◽  
Daniel J. Klingenberg
Keyword(s):  
Yield Stress ◽  
Stress Increase ◽  
Magnetorheological Suspensions ◽  
Yield Stress Increase

Influence of Isothermal Transformation Dwell on Tensile and Fatigue Properties of Austempered Ductile Iron

2005 ◽  
Vol 482 ◽  
pp. 371-374 ◽  
Author(s):  
Stanislav Vĕchet ◽  
Jan Kohout ◽  
Klára Hanzlíková
Keyword(s):  
Mechanical Properties ◽  
Yield Stress ◽  
Fatigue Limit ◽  
Ductile Iron ◽  
Retained Austenite ◽  
Isothermal Transformation ◽  
Austempered Ductile Iron ◽  
Fatigue Properties ◽  
Stress Increase ◽  
Yield Stress Increase

Two ADI heats transformed at temperatures of 400 and 380 °C during temporal range from 2 minutes to 9 hours were studied in details, with emphasis on structure composition and mechanical properties (tensile and fatigue properties were determined). In the case of the shortest dwells the level of mechanical properties is influenced by martensite, which occurs in the structure as a result of subsequent cooling. UTS and yield stress increase slightly with the dwell of isothermal transformation while the values of elongation to fracture as well as of fatigue limit are very closely dependent on the amount of the retained austenite in the microstructure.

Yield stress increase in electron irradiated copper

1968 ◽  
Vol 17 (146) ◽  
pp. 235-240 ◽  
Author(s):  
Kanji Ono ◽  
T. Mifune ◽  
M. Meshii
Keyword(s):  
Yield Stress ◽  
Stress Increase ◽  
Yield Stress Increase

Yield stress and structuration of magnetorheological suspensions

1993 ◽  
Vol 122 (1-3) ◽  
pp. 51-52 ◽  
Author(s):  
E. Lemaire ◽  
G. Bossis ◽  
Y. Grasselli
Keyword(s):  
Yield Stress ◽  
Magnetorheological Suspensions

Surface chemistry, rheology and microstructure of as-received SHCa-1 hectorite gels

Clay Minerals ◽  
2019 ◽  
Vol 54 (3) ◽  
pp. 269-275 ◽  
Author(s):  
Pek-Ing Au ◽  
Mingyong Du ◽  
Jishan Liu ◽  
Md. Bashirul Haq ◽  
Yee-Kwong Leong
Keyword(s):  
Zeta Potential ◽  
Yield Stress ◽  
Maximum Yield ◽  
Ageing Behaviour ◽  
Cellular Microstructure ◽  
Ageing Model ◽  
Yield Stress Increase ◽  
Ph Range ◽  
Stress Behaviour ◽  
The Relationship

AbstractThe zeta potential and yield-stress behaviour of gels prepared from as-received SHCa-1 hectorite (Ht) containing 50 wt.% impurities, mainly of calcite, dolomite and quartz, were characterized. The zeta potential is negative in the pH range 4–12. At pH <5, reaction of CaCO3 producing CO2 and Ca2+ increased the solution conductivity significantly and reduced the zeta potential. The buffering effect due to this chemical reaction was also observed in the yield stress–pH characterization below pH 8. Low yield stress was observed below pH 6 and above pH 12. The yield stress peaked at pH ~8, where Ht displayed a zeta potential of –20 mV. The relationship between maximum yield stress and Ht content (wt.%) was linear and was not affected by impurities. The ageing behaviour was characterized by an initial phase of rapid yield-stress increase and then by a phase of gradual increase. The Leong model performed better than the two-parameter glassy polymer ageing model in describing this ageing behaviour. However, the empirical power law model was more accurate. The timescale of the ageing process is long, lasting several days. An open cellular microstructure was observed to form in the gels. Impurities appeared not to interact with or bind to the Ht platelets.

scholarly journals Yield stress in magnetorheological suspensions near the limit of maximum-packing fraction

2012 ◽  
Vol 56 (5) ◽  
pp. 1209 ◽  
Author(s):  
Modesto T. López-López ◽  
Pavel Kuzhir ◽  
Jaime Caballero-Hernández ◽  
Laura Rodríguez-Arco ◽  
Juan D. G. Duran ◽  
...  
Keyword(s):  
Yield Stress ◽  
Packing Fraction ◽  
Magnetorheological Suspensions ◽  
Maximum Packing Fraction
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