Refractory material based on porous phosphate filler

AbstractThe process of bone regeneration in bone grafting procedures is greatly influenced by the physicochemical properties of the bone graft substitute. In this study, porous phosphate glass (PPG) morsels were developed and their physicochemical properties such as degradation, crystallinity, organic content, surface topography, particle size and porosity were evaluated using various analytical methods. The in vitro cytotoxicity of the PPG morsels was assessed and the interaction of the PPG morsels with Dental Pulp Stem Cells (DPSCs) was studied by measuring cell proliferation and cell penetration depth. The cell-material interactions between PPG morsels and a commercially available xenograft (XG) were compared. The PPG morsels were observed to be amorphous, biocompatible and highly porous (porosity = 58.45%). From in vitro experiments, PPG morsels were observed to be non-cytotoxic and showed better cell proliferation. The internal surface of PPG was easily accessible to the cells compared to XG.

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Refractory material based on alumina-magnesia spinel

Glass and Ceramics ◽

10.1007/bf00696062 ◽

1982 ◽

Vol 39 (2) ◽

pp. 89-92

Author(s):

M. V. Glazacheva ◽

A. M. Cherepanov ◽

E. Ya. Medvedovskii ◽

F. Ya. Kharitonov

Keyword(s):

Refractory Material ◽

Magnesia Spinel

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Interfacial Reaction Between Ultra Low C Steel and Gas Generated from Refractory Material Used for Submerged Entry Nozzle for Continuous Casting

BHM Berg- und Hüttenmännische Monatshefte ◽

10.1007/s00501-017-0687-3 ◽

2017 ◽

Vol 163 (1) ◽

pp. 18-22 ◽

Cited By ~ 5

Author(s):

Joo-Hyeok Lee ◽

Sung-Kwang Kim ◽

Myeong-Hun Kang ◽

Youn-Bae Kang

Keyword(s):

Continuous Casting ◽

Refractory Material ◽

Interfacial Reaction ◽

Submerged Entry Nozzle

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Zirconia sol–gel coatings on alumina–silica refractory material for improved corrosion resistance

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2009.08.024 ◽

2009 ◽

Vol 204 (4) ◽

pp. 477-483 ◽

Cited By ~ 29

Author(s):

Aaron J. Kessman ◽

Karpagavalli Ramji ◽

Nicholas J. Morris ◽

Darran R. Cairns

Keyword(s):

Corrosion Resistance ◽

Refractory Material ◽

Sol Gel ◽

Silica Refractory

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EFFECTIVE THERMAL CONDUCTIVITY OF INSULATING-REFRACTORY MATERIAL

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN ◽

10.1252/jcej.10.242 ◽

1977 ◽

Vol 10 (3) ◽

pp. 242-244 ◽

Cited By ~ 4

Author(s):

MASANORI FUJITSU ◽

MASANOBU HASATANI ◽

SACHIO SUGIYAMA

Keyword(s):

Thermal Conductivity ◽

Effective Thermal Conductivity ◽

Refractory Material

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Research on Development of the New Refractory Material Called OXITEC

Springer Proceedings in Energy - Renewable Energy Sources: Engineering, Technology, Innovation ◽

10.1007/978-3-030-13888-2_56 ◽

2019 ◽

pp. 571-578

Author(s):

Bartosz Piechnik ◽

Rafał Kalbarczyk ◽

Julita Bukalska ◽

Przemysław Motyl ◽

Krzysztof Olejarczyk ◽

...

Keyword(s):

Refractory Material

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Study of Refractory Material Installation in the Reactor Cavity

Volume 2B: Thermal Hydraulics ◽

10.1115/icone22-31220 ◽

2014 ◽

Author(s):

Young Tae Moon ◽

In Chul Ryu ◽

Quan Zhou ◽

Paul McMinn ◽

Chan Y. Paik

Keyword(s):

Refractory Material ◽

Protective Layer ◽

Ablation Depth ◽

Severe Accident ◽

Refractory Materials ◽

Protective Material ◽

Concrete Material ◽

Combustible Gases ◽

Accident Conditions ◽

Containment Pressure

During a severe accident with a vessel failure, corium relocates from the vessel into the reactor cavity (PWR) or pedestal (BWR) and accumulates on top of the cavity floor to form a corium pool. This corium pool is hot enough to cause a Molten Corium-Concrete Interaction (MCCI) that can ablate the concrete structure even if water is present on top of the corium. MCCI will also produce steam and other gases that increase containment pressure as well as generate combustible gases (Hydrogen and Carbon Monoxide). Current MAAP5* calculations with conservative assumptions have shown that the ablation depth in a basemat constructed of siliceous concrete can be larger than the depth of liner, even if the reactor cavity is flooded by water. To retain the melt in the containment and to cool the corium pool before the erosion reaches the liner plate, several approaches are being considered. One of these approaches is the installation of a protective layer on top of the concrete floor to retard MCCI. The purpose of this paper is to study the performance of different protective materials under postulated severe accident conditions. The candidates for the protective materials are refractory materials and limestone/limestone-common-sand (LCS) concrete. The refractory material was chosen based on the thermal performance and dissolution rate of the refractory material calculated by analytical calculations and also by MAAP5. Adding the refractory protective material protects the underlying concrete basemat from melting temporarily, so that water ingression into the surface of the corium is not initially affected by addition of the concrete material. *MAAP5 is an integrated severe accident code owned by the Electric Power Research Institute and developed by Fauske and Associates, LLC.

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