Slow cooling conditions for texturing ferromagnetic materials by solidification in a magnetic field

2006 ◽  
Vol 55 (8) ◽  
pp. 747-750 ◽  
Author(s):  
Peiran Deng ◽  
Jianguo Li
Keyword(s):  
Magnetic Field ◽  
Ferromagnetic Materials ◽  
Slow Cooling ◽  
Cooling Conditions

scholarly journals Correlation of Processing, Inner Structure, and Part Properties of Injection Moulded Thin-Wall Parts on Example of Polyamide 66

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Dietmar Drummer ◽  
Steve Meister
Keyword(s):  
Cooling Rate ◽  
Injection Moulding ◽  
Degree Of Crystallinity ◽  
Process Conditions ◽  
Thin Wall ◽  
Polyamide 66 ◽  
Slow Cooling ◽  
Cooling Conditions ◽  
Internal Structures ◽  
Wall Injection

In micro- and thin-wall injection moulding the process conditions affect the developed internal structures and thus the resulting part properties. This paper investigates exemplarily on polyamide 66 the interactions of different cooling conditions on the morphological and crystalline structures. The investigations reveal that a slow cooling rate of the melt results in a homogeneous morphology and a higher degree of crystallinity and also a favoured crystalline structure. Consequently, the dielectric behaviour and light transmitting part properties are affected.

scholarly journals Experimental Study on Ferromagnetic Shunt Effects on the Critical Current of BSCCO Tape in Stacked Conductors

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
J. Sun ◽  
H. Ohara ◽  
S. Yamaguchi
Keyword(s):  
Magnetic Field ◽  
Critical Current ◽  
Layer Structure ◽  
Strong Dependence ◽  
Critical Currents ◽  
Ferromagnetic Materials ◽  
Field Analysis ◽  
Test Facility ◽  
Feeding Mode ◽  
Magnetic Field Analysis

In the 200 m high temperature superconducting (HTS) cable test facility at Chubu University constructed in 2010, a three-layer structure of the tapes in the cable is employed for obtaining the high current capacity up to 2 kA. Previous study shows that the critical current is affected by the layout of the tapes such as gaps and the current feeding mode. In the stacked tape conductors, the critical current of BSCCO tapes shows strong dependence on the current feeding directions between the tapes. The critical current is improved when the opposite-direction current is applied to them and degraded for the same-direction current feeding mode because of strong magnetic field interaction between them from the transport current in each tape. This paper presents the measurements of the critical currents of a BSCCO tape in the stacked conductors with the ferromagnetic materials. By using the ferromagnetic materials surrounding the tapes, self-field of HTS tapes is affected and their critical currents are improved by more than 10%. Ferromagnetic shunt effects on the critical current of HTS tape are reported through the magnetic field analysis.

scholarly journals Influence of Al and N Content and Cooling Rate on the Characteristics of Complex MnS Inclusions in AHSS

Crystals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1054
Author(s):  
Muhammad Nabeel ◽  
Michelia Alba ◽  
Neslihan Dogan
Keyword(s):  
Cooling Rate ◽  
High Strength Steels ◽  
High Strength ◽  
Slow Cooling ◽  
N Content ◽  
Al Content ◽  
Advanced High Strength Steels ◽  
Cooling Conditions ◽  
Mns Precipitation ◽  
Precipitation Ratio

This study focused on the characteristics of complex MnS inclusions in advanced high strength steels. The effect of metal chemistry (Al and N) and the cooling rate of steel were evaluated by analyzing the inclusions present in five laboratory produced steels. The observed complex MnS inclusions contained Al2O3-MnS, AlN-MnS, and AlON-MnS. An increase in Al content from 0.5% to 6% increased the number of complex MnS inclusions by ~4 times. In comparison, a decrease of ~80% was observed due to the increased N content of steel from <10 ppm to ~50 ppm. MnS precipitation ratio was used to determine the potency of different inclusions forming complex MnS inclusions due to heterogeneous nucleation. It was found that the MnS precipitation ratio of the observed inclusions was related to their misfit with MnS, and it decreased in the order of AlN > AlON > Al2O3. Moreover, it was determined that AlN particles could be easily engulfed at the solidification front relative to Al2O3, which resulted in a higher MnS precipitation ratio for Al2O3 under slow cooling conditions.

Role of external magnetic field during friction of ferromagnetic materials

Wear ◽  
2011 ◽  
Vol 271 (11-12) ◽  
pp. 2991-2997 ◽  
Author(s):  
Jile Jiang ◽  
Yu Tian ◽  
Yonggang Meng
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Ferromagnetic Materials
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