Thermal expansion behavior of copper matrix composite containing negative thermal expansion PbTiO 3 particles

Sheng, Jie; Wang, L.D.; Li, D.; Cao, Wenwu; Feng, Yu; Wang, M.; Yang, Zhiyuan; Zhao, Yu; Fei, W.D.

doi:10.1016/j.matdes.2017.06.061

Cited by 33 publications

(10 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally speaking, coefficient of thermal expansion (CTE) of epoxy resins is much larger than CTE of Hastelloy C276 ® , usually used as a substrate of CC tapes, and their thermal conductivity is very low. As reported in [24][25][26], the mismatch in the thermal expansion could be reduced to reasonable value using an addition of filler material with very low (or even negative) CTE. This concept has simultaneously an advantage in enhancement of thermal conductivity [23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 72%

“…The samples were prepared from two component epoxy resins mixed with a SiC powder filler with various resin to SiC ratios. The selection of the SiC filler is based on the results described in [26]. The powder contains particles with of 200-450 mesh, as declared by the producer; we verified by scanning electron microscope that the particle diameter ranges from 3 µm to 100 µm.…”

Section: Methodsmentioning

confidence: 95%

See 1 more Smart Citation

Composite Heat Sink Material for Superconducting Tape in Fault Current Limiter Applications

et al. 2020

View full text Add to dashboard Cite

We enhanced the performance of superconducting tapes during quenching by coating the tapes with various composites, with regards to the application of such coated systems in superconducting fault current limiters. In composition of the coating, we varied the type of epoxy matrix, the content of ceramic filler particles and the use of reinforcement in order to optimize the thermal and the mechanical stability of the coated tapes. By this way modified superconducting tapes were able to reduce the maximum temperature 170 °C of not modified superconducting tape to 55 °C during the quench with electric field up to 130 V m−1.

show abstract

Section: Introductionmentioning

confidence: 72%

Section: Methodsmentioning

confidence: 95%

Composite Heat Sink Material for Superconducting Tape in Fault Current Limiter Applications

et al. 2020

View full text Add to dashboard Cite

show abstract

“…A more promising approach to lower the braze CTE is to introduce a negative thermal expansion (NTE) filler material, which contracts upon heating [32][33][34][35][36][37][38]. A practically important NTE material is LiAlSiO 4 , which has an anisotropic CTE (α a = 8.21 × 10 -6 K -1 and α c = -17.6 × 10 -6 K -1 , 0-1000 °C).…”

Section: Introductionmentioning

confidence: 99%

A novel Ag based sealant for solid oxide cells with a fully tunable thermal expansion

Cao

Talic

et al. 2020

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…The coefficients of thermal expansion (CTE) of materials like SiC, SiO 2 , PbTiO 3 , ZrW 2 O 8 or diamond have low or even negative value (Table 1). According to several papers reported in [8][9][10][11][12], their addition in the form of powder to various materials had successfully reduced the thermal expansion of a final composite. This concept has also another advantage; the use of an insulating binder keeps unreduced the conductor resistivity in resistive, nonsuperconducting state.…”

Section: Introductionmentioning

confidence: 99%

Analysis of thermo-physical properties of materials suitable for thermal stabilization of superconducting tapes for high-voltage superconducting fault current limiters

Pekarčíková

Drienovský

Krajčovič

et al. 2019

J Therm Anal Calorim

View full text Add to dashboard Cite

High-temperature superconducting coated conductors (CC) are attractive materials for high-voltage resistive fault current limiters. Commercially produced CC tapes cannot withstand electric fields over 100 V m-1 , and therefore, they have to be modified by addition of thermal stabilization layer. We investigated several composite systems suitable for such thermal stabilization. As a matrix of composites, Stycast resins were used, which contain various contents of powder particles from SiC, SiO 2 , PbTiO 3 , ZrW 2 O 8 , or synthetic diamond. The thermo-physical properties such as thermal expansion, heat capacity, thermal diffusivity and direct-current electrical conductivity were measured because they are influenced by filler content in the composite. The possible highest amount of the powder can slightly increase the thermal conductivity and decrease the thermal expansion of the system to an acceptable value needed for the coating of CCs. A side effect is simultaneous drop of heat capacity; however, its value stays still high enough for the purpose of heat sinking. Overall, the best results were achieved in system with 20 vol% of SiC filler in Stycast 2850FT ? Catalyst 23LV resin matrix. There the contribution of the semiconducting SiC addition to the electrical conductivity of composite was negligible.

show abstract

Thermal expansion behavior of copper matrix composite containing negative thermal expansion PbTiO 3 particles

Cited by 33 publications

References 31 publications

Composite Heat Sink Material for Superconducting Tape in Fault Current Limiter Applications

Composite Heat Sink Material for Superconducting Tape in Fault Current Limiter Applications

A novel Ag based sealant for solid oxide cells with a fully tunable thermal expansion

Analysis of thermo-physical properties of materials suitable for thermal stabilization of superconducting tapes for high-voltage superconducting fault current limiters

Contact Info

Product

Resources

About