Results 61 to 70 of about 119,088 (294)

Thermal and electrical properties of silicon nitride substrates

AIP Advances, 2017
This work presents the results of studies on the thermal and electrical properties of sintered silicon nitride to investigate the effects of non-oxide additives. With regard to electrical transport properties, a high electrical resistivity of 1014 ∼ 1015
H. S. Dow, W. S. Kim, J. W. Lee
doaj   +1 more source

Cation-Exchange Capacity Distribution within Hydrothermal Systems and Its Relation to the Alteration Mineralogy and Electrical Resistivity

Energies, 2020
Cation-exchange capacity (CEC) measurements are widely used to quantify the smectite content in altered rocks. Within this study, we measure the CEC of drill cuttings in four wells from three different high-temperature geothermal areas in Iceland.
Tobias Björn Weisenberger, Heimir Ingimarsson, Gylfi Páll Hersir, Ólafur G. Flóvenz   +3 more
doaj   +1 more source

Effect of Sb deficiency on the thermoelectric properties of Zn4Sb3

, 2015
We have investigated the effect of Sb-deficiency on the thermoelectric figure of merit (zT) of Zn4Sb3 prepared by solid state reaction route. At high temperatures, the Seebeck coefficient (S) and electrical conductivity ({\sigma}) increase with increase ...
Sanchela, Anup V., Thakur, Ajay D., Tomy, C. V.   +2 more
core   +2 more sources

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Semimetallic molecular hydrogen at pressure above 350 GPa

, 2019
According to the theoretical predictions, insulating molecular hydrogen dissociates and transforms to an atomic metal at pressures P~370-500 GPa. In another scenario, the metallization first occurs in the 250-500 GPa pressure range in molecular hydrogen ...
Drozdov, A. P., Eremets, M. I., Kong, P. P., Wang, H.   +3 more
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Effect of Steel Fiber Content on the Electrical, Electrothermal, and Thermal Conductivity Properties of Iron Tailings-Based UHPC

Buildings
Iron tailings-based ultra-high-performance concrete (UHPC) was developed using iron tailings as aggregates, with steel fiber incorporation ranging from 0% to 2.5%. This study investigates the effects of steel fiber dosage and curing age on the electrical,
Qi Zhen, Yulin Wang, Xiaoyan Zheng, Henggan Li, Xiaotian Lin, Jinhua Wang   +5 more
doaj   +1 more source

Thermal conductivity of austenitic stainless steel, SRM 735, from 5 to 280 K [PDF]

Thermal conductivity and electrical resistivity measurements were conducted on two lots of an austenitic stainless steel. Electrical resistivity measurements were performed on the second lot, both before and after the material was hot-swaged and ...
Hust, J. G., Sparks, L. L.
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Capturing soil moisture and salinity changes in flooded coastal forests using electrical resistivity and induced polarization

Vadose Zone Journal
Geophysical methods provide high‐resolution spatial measurements of physical quantities sensitive to changes in soil moisture and salinity and can be used to monitor soil hydrological responses to flooding.
Moses B. Adebayo, Vanessa L. Bailey, Solomon Ehosioke, Efemena D. Emmanuel, Anya M. Hopple, Peter Regier, Kenton A. Rod, Xingyuan Chen, Nicholas D. Ward, J. Patrick Megonigal, Kennedy O. Doro   +10 more
doaj   +1 more source