Improving the Wall Uniformity of Resorcinol Formaldehyde Foam Shells by Modifying Emulsion Components

Paguio, R. R.; Takagi, Masaru; Thi, M.; Hund, J. F.; Nikroo, A.; Paguio, Sally; Luo, Rong; Greenwood, A.; Acenas, O.; Chowdhury, Subhendu Ray

doi:10.13182/fst51-682

Cited by 33 publications

(19 citation statements)

References 7 publications

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“…119 Emulsion processes can be optimized in order to adjust the sphericity and other important parameters for capsule production. 58,[114][115][116][120][121][122] A new approach was shown by Biener et al as a coating inside the prefabricated spherical ablator capsule. 92 The aerogel precursor solution was P(DCPD-r-NB) as described in Sec.…”

Section: Shell Structure Of Low Density Materialsmentioning

confidence: 99%

“…The RF aerogel has the advantage of transparency, and RF capsules with large diameters were fabricated with a high degree of precision. 116,120,[123][124][125] Because RF polymerization is carried out in aqueous solution, it emulsifies with the oil phase. Carbon in the final foam material was considered to be an acceptably low-content impurity for fusion plasma.…”

Section: Shell Structure Of Low Density Materialsmentioning

confidence: 99%

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A review of low density porous materials used in laser plasma experiments

2018

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This review describes and categorizes the synthesis and properties of low density porous materials, which are commonly referred to as foams and are utilized for laser plasma experiments. By focusing a high-power laser on a small target composed of these materials, high energy and density states can be produced. In the past decade or so, various new target fabrication techniques have been developed by many laboratories that use high energy lasers and consequently, many publications and reviews followed these developments. However, the emphasis so far has been on targets that did not utilize low density porous materials. This review therefore, attempts to redress this balance and endeavors to review low density materials used in laser plasma experiments in recent years. The emphasis of this review will be on aspects of low density materials that are of relevance to high energy laser plasma experiments. Aspects of low density materials such as densities, elemental compositions, macroscopic structures, nanostructures, and characterization of these materials will be covered. Also, there will be a brief mention of how these aspects affect the results in laser plasma experiments and the constrictions that these requirements put on the fabrication of low density materials relevant to this field. This review is written from the chemists' point of view to aid physicists and the new comers to this field.

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Section: Shell Structure Of Low Density Materialsmentioning

confidence: 99%

Section: Shell Structure Of Low Density Materialsmentioning

confidence: 99%

A review of low density porous materials used in laser plasma experiments

2018

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“…Paguio reported how adding a styrene-butadiene-styrene (SBS) block copolymer into the precursor solution of resorcinol formaldehyde foam shells increases its uniformity significantly [37]. SBS block copolymers allow modifying the rheological properties of the precursor solution without reacting with it.…”

Section: Sbs Additionmentioning

confidence: 99%

Development of aerogel-lined targets for inertial confinement fusion experiments

Braun

2013

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This thesis explores the formation of ICF compatible foam layers inside of an ablator shell used for inertial confinement fusion experiments at the National Ignition Facility. In particular, the capability of p-DCPD polymer aerogels to serve as a scaffold for the deuterium-tritium mix was analyzed. Four different factors were evaluated: the dependency of different factors such as thickness or composition of a precursor solution on the uniformity of the aerogel layer, how to bring the optimal composition inside of the ablator shell, the mechanical stability of ultra-low density p-DCPD aerogel bulk pieces during wetting and freezing with hydrogen, and the wetting behavior of thin polymer foam layers in HDC carbon ablator shells with liquid deuterium.

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“…Given the complex nature of the fusion reaction, stringent requirements are imposed on the sphericity and wall thickness uniformity of the targets. [22,23] The symmetry requirements are achieved by proper process control during polymerization, and the wall thickness uniformity is maintained by controlling volumes of inner oil phase and outer water phase of DE droplet. The shell thickness is…”

Section: Requirements On Double Emulsion Droplet Uniformity For Lasermentioning

confidence: 99%

On-Chip Double Emulsion Droplet Assembly Using Electrowetting-on-Dielectric and Dielectrophoresis

Wang

Jones

Harding

2011

Fusion Science and Technology

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Improving the Wall Uniformity of Resorcinol Formaldehyde Foam Shells by Modifying Emulsion Components

Cited by 33 publications

References 7 publications

A review of low density porous materials used in laser plasma experiments

A review of low density porous materials used in laser plasma experiments

Development of aerogel-lined targets for inertial confinement fusion experiments

On-Chip Double Emulsion Droplet Assembly Using Electrowetting-on-Dielectric and Dielectrophoresis

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