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Aerogel-Cores: Using foundry technology to produce complex shaped parts from aerogel granulates and binder

Meyer, Eva Helen and Milow, Barbara and Ratke, Lorenz (2016) Aerogel-Cores: Using foundry technology to produce complex shaped parts from aerogel granulates and binder. In: Proceedings 3rd International Seminar on Aerogels. 3rd International Seminar on Aerogels, 2016-09-22 - 2016-09-23, Nizza, Frankreich. ISBN 978-2-905267-93-1.

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Abstract

High-temperature stable aerogels are often brittle and prone to fractures. It is not easy to produce defined shapes or large complex shaped forms. Looking at the casting industry, they make defined, very complex moldings out of sand and binder by shooting sandcores with a so called core shooting machine. A wide range of binders (inorganic or organic, hot-box or cold-box, etc.) are used. Binder contents of 0.5 – 4 weight-% are common. In our study we used a sandcore-shooting-machine to produce simple and complex parts of aerogels. Different types of aerogels, grain sizes and binder systems were examined. Amount of binder, curing time and shooting pressure also play an important role. Superplasticizer and / or release agents were used to facilitate the shooting process and the core / part removal. Not all recipes appeared to produce aerogel parts successfully. Only through the adjustments of the experimental conditions stable cores and parts of aerogel could be produced. More binder content and a longer curing time at lower temperatures are needed. Thermal conductivity measurements and mechanical properties are presented.

Item URL in elib:https://elib.dlr.de/107053/
Document Type:Conference or Workshop Item (Poster)
Title:Aerogel-Cores: Using foundry technology to produce complex shaped parts from aerogel granulates and binder
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Meyer, Eva HelenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Milow, BarbaraUNSPECIFIEDhttps://orcid.org/0000-0002-6350-7728UNSPECIFIED
Ratke, LorenzUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:2016
Journal or Publication Title:Proceedings 3rd International Seminar on Aerogels
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmailEditor's ORCID iDORCID Put Code
Smirnova, IrinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Perrut, MichelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
ISBN:978-2-905267-93-1
Status:Published
Keywords:aerogel, foundry-technology, binder, composite
Event Title:3rd International Seminar on Aerogels
Event Location:Nizza, Frankreich
Event Type:international Conference
Event Start Date:22 September 2016
Event End Date:23 September 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - NGC Fahrzeugstruktur (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogele
Deposited By: Meyer, Eva Helen
Deposited On:04 Nov 2016 08:04
Last Modified:14 Jun 2024 11:37

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