Mullite-based cellular ceramics obtained by a combination of direct foaming and reaction bonding

Konegger, Thomas; Felzmann, Ruth; Achleitner, B.; Brouczek, Dominik

doi:10.1016/j.ceramint.2015.03.073

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Cited by 7 publications

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“…[3] Konegger and col. prepared porous mullite ceramics using multi-functional polymer precursor (poly(silsesquioxane)), serving also as a pore-forming agent, in combination with particulate alumina or alumina/aluminum mixtures. [4] In this work, agent Schäumungsmittel W 53 flüssig (shortly SCHM), water solution of anion active surfactant based on fatty alcohol sulfates, was used. [5] Refractory castables based on kaolin can reach compressive strength of 4 MPa at specific weight of 300 kg•m -3 .…”

Section: Introductionmentioning

confidence: 99%

The Preparation of Heat Insulating Moulded Refractories

Bednárek¹,

Novotný²,

Šoukal³

et al. 2016

MSF

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The thesis deals with the study of influence of the foaming agent Schäumungsmittel W 53 addition on the specific weight and mechanical characteristics of mullite based heat insulating refractory castables. The effect of dosing and mixing time was observed in this work. The influence of partial substitution of mullite matrix by kaolin was also studied. Kaolin was added in dry matter or in the foamed state. Optimal dosage of the agent was 0,25 % and the optimal mixing time was 10 min. The addition of kaolin was the most effective in the foamed state.

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Section: Introductionmentioning

confidence: 99%