Effect of polysilane addition on spark plasma sintering and superconducting properties of MgB2 bulks
Source abstract
Abstract
Polycrystalline MgB2 bulk samples were produced by ex-situ spark plasma sintering (SPS) using the oxygen-free preceramic polymer additive poly(dimethylsilane) as a source for carbon doping and as a sintering aid. Two major effects were identified. One is the significant enhancement of the densification kinetics during sintering for all tested compositions. The second one is the improvement of the high field critical current density for a certain level of the poly(dimethylsilane) addition.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Superconductivity in MgB2 and Alloys · Physics of Superconductivity and Magnetism · Iron-based superconductors research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
Show source-provided references
1. Very high upper critical fields in MgB2 produced by selective tuning of impurity scattering10.1088/0953-2048/17/2/008 ↗
2. Systematic effects of carbon doping on the superconducting properties of Mg(B1-xCx)210.1103/PhysRevLett.92.217003 ↗
3. Retention of two-band superconductivity in highly carbon-doped MgB210.1103/PhysRevB.68.060508 ↗
4. Effects of boron purity, Mg stoichiometry and carbon substitution on properties of polycrystalline MgB210.1016/S0921-4534(02)02326-2 ↗
5. Research progress of electromagnetic properties of MgB2 induced by carbon-containing materials addition and process techniques10.1007/s40195-020-01016-0 ↗
6. Substitution-induced pinning in MgB2 superconductor doped with SiC nano-particles10.1088/0953-2048/15/11/317 ↗
7. Superconductivity, critical current density, and flux pinning in MgB2-x(SiC)x/2 superconductor after SiC nanoparticle doping10.1063/1.1586467 ↗
8. Enhancement of the critical current density and flux pinning of MgB2 superconductor by nanoparticle SiC doping10.1063/1.1517398 ↗
9. Effect of SiC nanoparticle addition on the critical current density of MgB2 tapes fabricated from MgH2, B and MgB2 powder mixtures10.1088/0953-2048/18/10/015 ↗
10. Large upper critical field and irreversibility field in MgB2 wires with SiC additions10.1063/1.1872210 ↗
11. Effect of grain size and doping level of SiC on the superconductivity and critical current density in MgB2 superconductor10.1109/TASC.2003.812223 ↗
12. Effects of the size of the doped SiC nanoparticles on the critical current density of the Ti-sheathed MgB2 superconducting wires10.1109/TASC.2010.2091616 ↗
13. Li · 2015 · 1345
14. Vaporization thermodynamics of MgB2 and MgB410.1063/1.1471382 ↗
15. Spark plasma sintering of MgB2 in the two-temperature route10.1016/j.physc.2012.01.023 ↗
16. The influence of different additives on MgB2 superconductor obtained by ex situ Spark Plasma Sintering: pinning force aspects
17. Preparation of pure and doped MgB2 by the field-assisted sintering technique and superconducting properties10.1088/0953-2048/20/8/020 ↗
18. Te and SiC co-doped MgB2 obtained by an ex situ spark plasma sintering technique10.1016/j.scriptamat.2012.11.011 ↗
19. Energetics of oxide nanoparticles10.1002/qua.21981 ↗
20. Field-assisted sintering technology/spark plasma sintering: mechanisms, materials, and technology developments10.1002/adem.201300409 ↗
21. Thermal degradation of poly(dimethylsilylene) and poly(tetramethyldisilylene-co-styrene)10.1002/app.22813 ↗
22. Near‐stoichiometric silicon carbide from an economical polysilane precursor10.1111/j.1151-2916.1992.tb05578.x ↗
23. Poly(methylsilane)-a high ceramic yield precursor to silicon carbide
24. Pyrolytic conversion of methyl- and vinylsilane polymers to Si-C ceramics10.1007/BF01209227 ↗
25. Polydimethylsilanes10.1021/ja01171a055 ↗
26. MgB2 powders and bioevaluation of their interaction with planktonic microbes, biofilms, and tumor cells10.1016/j.jmrt.2021.04.003 ↗
27. Prediction of sintering density for bimodal powder mixtures10.1007/BF02647329 ↗
28. Total pattern fitting for the combined size – strain – stress – texture determination in thin film diffraction10.1016/j.nimb.2009.09.053 ↗
29. Dwell time influence on spark plasma-sintered MgB210.1007/s10948-017-4236-9 ↗
30. Effect of certain group IV oxides on dielectric constant and dissipation factor of barium titanate10.1021/ie50548a044 ↗
31. Magnetization of hard superconductors10.1103/PhysRevLett.8.250 ↗
32. Synthesis of continuous silicon carbide fibre with high tensile strength and high Young's modulus: Part 1 Synthesis of polycarbosilane as precursor
33. Graphene addition to MgB2 superconductor obtained by ex-situ spark plasma sintering technique10.1016/j.materresbull.2016.01.041 ↗
34. Superplastic compressive flow in MgB210.1016/j.actamat.2009.06.033 ↗
35. Superplasticity of TZP/Al2O3 composite10.1111/j.1551-2916.1988.tb00173.x ↗
36. Experimental study of MgB2 decomposition10.1063/1.1383804 ↗
37. Decomposition and oxidation of magnesium diboride10.1111/j.1551-2916.2011.04998.x ↗
38. Thermodynamic and kinetic aspects of decomposition of MgB2 in vacuum: implications for optimization of synthesis conditions10.1016/j.jcrysgro.2005.12.105 ↗
39. Influence of Mg deficiency on crystal structure and superconducting properties in MgB2 single crystals10.1103/PhysRevB.81.054520 ↗
40. Structure sensitivity of the oxidative activation of methane over MgO model catalysts: II. Nature of active sites and recreation mechanism
41. Structure sensitivity of the oxidative activation of methane over MgO model catalysts: I. Kinetic study10.1016/j.jcat.2015.05.007 ↗
42. Magnesium containing coatings formed by a low-energy electron beam10.1016/j.surfcoat.2018.05.045 ↗
43. Use of preceramic polymers for magnesium diboride composites10.1016/j.physc.2012.03.052 ↗
44. Improvement of the critical current density of spark plasma sintered MgB2 by C60 addition10.1088/0953-2048/23/9/095002 ↗
45. Flux pinning mechanisms in type II superconductors10.1080/14786439808206556 ↗
46. Strongly linked current flow in polycrystalline forms of the superconductor MgB210.1038/35065559 ↗
47. On the pinning force in high density MgB2 samples10.1038/s41598-021-85209-2 ↗