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Influence of solid-to-liquid ratio on properties of fly ash geopolymer ceramics
(IOP Publishing Ltd, 2019-08)
Ceramics has come to be progressively very important in industry because of their exceptional mechanical and physical properties The motivation to develop fly ash geopolymer ceramics was to overcome the problem associated ...
Investigation of heat released during geopolymerization with fly ash based geopolymer
(IOP Publishing Ltd, 2019-08)
Geopolymerization consists of several chemical reactions that has been reported widely as an exothermic reaction. Previous studies on heat released during geopolymerization used metakaolin and fly ash of F class as a ...
Porous metakaolin geopolymers with tailored thermal conductivity
(IOP Publishing Ltd, 2019-08)
In this work, a novel lightweight metakaolin geopolymers were produced by using hydrogen peroxide as foaming agent. The influence of the hydrogen peroxide incorporation content (0.25 – 1.25%) on density, compressive strength ...
Graphene geopolymer hybrid: a review on mechanical properties and piezoelectric effect
(IOP Publishing Ltd, 2019-08)
A review on graphene geopolymers hybrid is presented, focusing on the mechanical properties and piezoelectric effect. The method and way of mixing graphene with geopolymers are discussed, including form of graphene that ...
Correlation of microstructure and flexural strength of fly ash geopolymer of varying molarities
(IOP Publishing Ltd, 2019-08)
The present work studies and compares the flexural properties of fly ash geopolymer with varying molarity of sodium hydroxide (NaOH). Different molarities of NaOH solution (6M, 8M, 10M, 12M and 14M) are used to prepare the ...
A review of geopolymer ceramic as a potential reinforcement material in solder alloys
(IOP Publishing Ltd, 2019-12)
Nowadays, lead-free solder has been currently used in electronic packaging technology as part of soldering material. Since SnPb was detected to produce toxicity and might harm the consumers, the usage of Pb solder has been ...
Effect of different ratio of geopolymer paste based fly ash-metakaolin on compressive strength and water absorption
(IOP Publishing Ltd, 2019-12)
This paper presents the effect of different solid to solid (S/S) ratio by mixing the fly ash and metakaolin as geopolymer paste on the compressive strength and water absorption. Fly ash is a waste materials produced by ...
Characterization of geopolymer ceramic reinforced Sn-0.7Cu composite solder: effect of milling time and speed
(IOP Publishing Ltd, 2019-12)
The effect on the addition of optimally ball milled kaolin and fly ash geopolymer ceramic as reinforcement on the morphology and electrical properties of Sn-0.7Cu composite solder were explored. Geopolymer ceramics from ...
Influence of kaolin geopolymer ceramic additions to the wettability and electrical properties of Sn-3.0Ag-0.5Cu (SAC305) lead free solder
(IOP Publishing Ltd, 2019-12)
The effect of kaolin geopolymer ceramic addition to the wettability and electrical resistivity of Sn-3.0Ag-0.5Cu (SAC305) lead free solder was successfully explored. Powder metallurgy with microwave sintering method was ...
Microstructural analysis of fly ash-based geopolymers with various alkali concentration
(IOP Publishing Ltd, 2019-08)
In the present work, a comparative study on the effect of different concentration of sodium hydroxide (NaOH) on fly ash-based geopolymer was investigated. The geopolymer synthesis by mixing fly ash with alkali activator ...