Slip casting high-T c superconductors

Bloomberg, D. E.; Applegate, D.S.; Tolt, T. L.; Lanagan, Michael T.; Dusek, J.T.; Poeppel, R.B.; Goretta, K. C.

doi:10.1007/bf01730129

Cited by 8 publications

(7 citation statements)

References 11 publications

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“…were the same as shapes for polycrystalline YBCO samples which include many defects and have much distortion. The J c of the sample prepared from the slurry with water was about 700 A/cm 2 at 0.02 T. This J c value was slightly larger than reported J c values (<500 A/cm 2 ) for YBCO bulk samples prepared by slip casting and extrusion using an organic solvent . On the other hand, the sample prepared with turpentine oil exhibited a J c value of 1,420 A/cm 2 at 0.03 T, which is around one of ten several minutes of reported values (>1.04 × 10 4 A/cm 2 at H = 0 T at 77 K) for YBCO samples made by melt‐texturing growth processing .…”

Section: Resultsmentioning

confidence: 52%

“…A simple and economical process is needed to create large bulk shapes suitable for various applications. Such bulk manufacturing processes include slip casting, extrusion, and plastic molding, and various ceramics products can be made using these processes. Shortly after the discovery of high‐ T c superconductors, many studies on their preparation using bulk manufacturing processes have been reported .…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, if an organic solvent with a low dielectric is used as a solvent in the production of the slurry, the elution of Ba 2+ and Cu 2+ ions from the YBa 2 Cu 3 (OH) y multimetallic hydroxide particles and YBCO powder will be prevented. Bloomberg et al . reported a YBCO superconductor prepared using methyl–ethyl–ketone as a solvent.…”

Section: Introductionmentioning

confidence: 99%

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Plastic Forming of High‐T_cYBa₂Cu₃O_7−x Bulk Superconductors

et al. 2013

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The large bulk high-T c YBa 2 Cu 3 O 7Àx (YBCO) superconductor samples were prepared by plastic-forming method. We examined the effects of the solvent and the crystallinity of YBCO powder on the composition, crystallinity, and superconducting properties of YBCO sheet samples (sample size: 50 mm 3 50 mm 3 3 mm). By changing the solvent from water to turpentine oil, the leaching of Ba 2+ ions from YBa 2 Cu 3 (OH) y multimetallic hydroxide particles used as an inorganic binder and the YBCO powder were reduced. This results in the composition of the grain boundaries of fired YBCO sheet samples to be the same as the composition of YBa 2 Cu 3 (OH) y multimetallic hydroxide particles. Changing nondoped YBCO powder prepared by sintering to 5 wt% Pt-doped YBCO powder prepared by melt texturing, J c value of YBCO sheet samples changed from about 700 to 6,106 A/cm 2 at 77 K.

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Section: Resultsmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Plastic Forming of High‐T_cYBa₂Cu₃O_7−x Bulk Superconductors

et al. 2013

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“…Limitations to attaining high critical current density (J c ) in bulk polycrystalline high-J c superconductors include crystallographic J c anisotropy, 1 superconducting weak links at grain boundaries, 2 and flux line depinning above the irreversibility line. 3 Many of these materials exhibit anisometric grains which can result in low bulk density, further limiting J c .…”

mentioning

confidence: 99%

“…Traditional powder routes for producing oriented microstructures in materials containing anisometric grains include cold pressing, 9 tape casting, 7 and conventional slip casting. 1 Cold pressing of high aspect ratio powders induces texture by forcing the particles to deform, fracture, and/or rotate so that the long direction of the particles is perpendicular to the pressing direction. In tape casting, shearing action aligns the suspended anisometric particles within the slip.…”

mentioning

confidence: 99%

Preferred orientation of BSCCO via centrifugal slip casting

et al. 1994

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Due to the highly anisotropic properties of BSCCO superconductors, the bulk properties of these materials can be greatly affected by preferential orientation. Substantial c-axis orientation normal to the desired direction of current flow has been demonstrated by centrifugally slip casting lead-doped BSCCO-2223. The strong preferred orientation developed in the centrifugally slip-cast material demonstrates high critical current potential.

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Efficient Fabrication of Ultralight YBa₂Cu₃O₇₋_x Superconductors with Programmable Shape and Structure

Zhang

et al. 2021

Adv Funct Materials

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Superconducting YBa 2 Cu 3 O 7−x (YBCO) bulks have demonstrated promising applications in quasi-permanent magnets, levitation, etc. Recently, the applications of bulk superconductors have been proposed, such as in portable, ultralight superconducting devices. These applications require bulk superconductors with lightweight, complex morphology, and good processability. However, the traditional fabrication method of YBCO bulks requires prolonged supplemental oxygenation and produces limited geometries with many randomly distributed cracks. This, combined with the inherent brittleness of the ceramic material, seriously impedes its wide application. In this study, a YBCO bulk with a multiscale hierarchical geometric configuration is constructed by a direct-inkwriting-based 3D-printing process. The 3D-printed YBCO green bodies exhibit a robust structure after directional freezing, which promotes intimate contact between the precursor particles in the deposited layers. This technology offers the advantage of a low shrinkage of 13.6 vol% after sintering at 920 °C. The 3D-printed bulks show lightweight, highly crystalline, and good electromagnetic properties compared with those produced by traditional cold-pressed sintering. Importantly, the multilevel void structure with a large specific surface area significantly reduces the oxygenation time and retains superconductivity. The proposed 3D-printing process can be adopted for the industrial production of superconducting bulk with complex geometries for novel applications.

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Slip casting high-T c superconductors

Cited by 8 publications

References 11 publications

Plastic Forming of High‐T_cYBa₂Cu₃O_7−x Bulk Superconductors

Plastic Forming of High‐T_cYBa₂Cu₃O_7−x Bulk Superconductors

Preferred orientation of BSCCO via centrifugal slip casting

Efficient Fabrication of Ultralight YBa₂Cu₃O₇₋_x Superconductors with Programmable Shape and Structure

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Slip casting high-T c superconductors

Cited by 8 publications

References 11 publications

Plastic Forming of High‐TcYBa2Cu3O7−x Bulk Superconductors

Plastic Forming of High‐TcYBa2Cu3O7−x Bulk Superconductors

Preferred orientation of BSCCO via centrifugal slip casting

Efficient Fabrication of Ultralight YBa2Cu3O7−x Superconductors with Programmable Shape and Structure

Contact Info

Product

Resources

About

Plastic Forming of High‐T_cYBa₂Cu₃O_7−x Bulk Superconductors

Plastic Forming of High‐T_cYBa₂Cu₃O_7−x Bulk Superconductors

Efficient Fabrication of Ultralight YBa₂Cu₃O₇₋_x Superconductors with Programmable Shape and Structure