Noninterference Wearable Strain Sensor: Near-Zero Temperature Coefficient of Resistance Nanoparticle Arrays with Thermal Expansion and Transport Engineering

ACS Nano ◽  
2021 ◽  
Author(s):  
Taesung Park ◽  
Ho Kun Woo ◽  
Byung Ku Jung ◽  
Byeonghak Park ◽  
Junsung Bang ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Temperature Coefficient ◽  
Strain Sensor ◽  
Nanoparticle Arrays ◽  
Zero Temperature ◽  
Temperature Coefficient Of Resistance

scholarly journals A Proposal for a Composite with Temperature-Independent Thermophysical Properties: HfV2–HfV2O7

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5021
Author(s):  
Philipp Keuter ◽  
Anna L. Ravensburg ◽  
Marcus Hans ◽  
Soheil Karimi Aghda ◽  
Damian M. Holzapfel ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Temperature Coefficient ◽  
Thermophysical Properties ◽  
Coefficient Of Thermal Expansion ◽  
Negative Thermal Expansion ◽  
Phase Fraction ◽  
Formation Temperature ◽  
Oxygen Mobility ◽  
Zero Temperature ◽  
Coefficient Of Elasticity

The HfV2–HfV2O7 composite is proposed as a material with potentially temperature-independent thermophysical properties due to the combination of anomalously increasing thermoelastic constants of HfV2 with the negative thermal expansion of HfV2O7. Based on literature data, the coexistence of both a near-zero temperature coefficient of elasticity and a coefficient of thermal expansion is suggested for a composite with a phase fraction of approximately 30 vol.% HfV2 and 70 vol.% HfV2O7. To produce HfV2–HfV2O7 composites, two synthesis pathways were investigated: (1) annealing of sputtered HfV2 films in air to form HfV2O7 oxide on the surface and (2) sputtering of HfV2O7/HfV2 bilayers. The high oxygen mobility in HfV2 is suggested to inhibit the formation of crystalline HfV2–HfV2O7 composites by annealing HfV2 in air due to oxygen-incorporation-induced amorphization of HfV2. Reducing the formation temperature of crystalline HfV2O7 from 550 °C, as obtained upon annealing, to 300 °C using reactive sputtering enables the synthesis of crystalline bilayered HfV2–HfV2O7.

Water-proof and thermally inert flexible pressure sensors based on zero temperature coefficient of resistance hybrid films

2019 ◽  
Vol 7 (31) ◽  
pp. 9648-9654 ◽  
Author(s):  
Zhiyi Gao ◽  
Kai Jiang ◽  
Zheng Lou ◽  
Wei Han ◽  
Guozhen Shen
Keyword(s):  
Environmental Monitoring ◽  
Temperature Coefficient ◽  
Pressure Sensors ◽  
Zero Temperature ◽  
Hybrid Films ◽  
Temperature Coefficient Of Resistance ◽  
Water Proof ◽  
Flexible Pressure Sensors

The accurate measurement of pressure sensors realizes the idea of non-interference environmental monitoring, which is very important for the application of electronic skins (e-skins).

scholarly journals Graphene–Metal Composite Sensors with Near-Zero Temperature Coefficient of Resistance

ACS Omega ◽  
2017 ◽  
Vol 2 (2) ◽  
pp. 626-630 ◽  
Author(s):  
Brandon C. Marin ◽  
Samuel E. Root ◽  
Armando D. Urbina ◽  
Eden Aklile ◽  
Rachel Miller ◽  
...  
Keyword(s):  
Temperature Coefficient ◽  
Metal Composite ◽  
Zero Temperature ◽  
Temperature Coefficient Of Resistance
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