| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Karhu, Marjaana
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2023Investigation of Novel Nano-carbide WC/CoCr Coatings Applied by HVAFcitations
- 2022Investigation of novel nano-carbide WC/CoCr coatings applied by HVAF
- 2022Mining tailings as a raw material for glass-bonded thermally sprayed ceramic coatings : Microstructure and propertiescitations
- 2020Utilizing mixed-mineralogy ferroan magnesite tailings as the source of magnesium oxide in magnesium potassium phosphate cementcitations
- 2020Utilizing mixed-mineralogy ferroan magnesite tailings as the source of magnesium oxide in magnesium potassium phosphate cementcitations
- 2020Utilization of Mineral Side Streams in High Temperature Ceramic Materials:Dissertation
- 2020Mining tailings as a raw material for glass-bonded thermally sprayed ceramic coatings:Microstructure and propertiescitations
- 2019Magnesite-rich mining tailings as a raw material for refractory ceramics:Microstructural and thermal analysiscitations
- 2019Mining tailings as raw materials for reaction-sintered aluminosilicate ceramics : Effect of mineralogical composition on microstructure and propertiescitations
- 2019Mining tailings as raw materials for reaction-sintered aluminosilicate ceramicscitations
- 2019Mining tailings as raw materials for reaction-sintered aluminosilicate ceramics:Effect of mineralogical composition on microstructure and propertiescitations
- 2018Nanocrystalline WC-Co HVAF Coatings by Utilizing Novel Powder Manufacturing Route Using Water-Soluble Raw Materialscitations
- 2017Reaction heat utilization in aluminosilicate-based ceramics synthesis and sintering
- 2017Nanostructural WC-Co coatings by utilizing novel powder manufacturing route using water soluble raw materials
- 2016Preparing nano structural WC-Co powders by utilizing soluble raw materials by spray drying and synthesis method
- 2016Preparing nano-structural WC-Co coatings by utilizing novel powder manufacturing route
- 2016Synthesis of nano structural Cr 3 C 2 powders from water soluble precursors
- 2016Reaction heat utilization potential in mullite and spinel based ceramics synthesis and sintering
- 2016Exothermic assisted synthesis of mullite and spinel based ceramics
- 2016Reaction heat potential utilization in mullite and spinel based ceramics synthesis and sintering
- 2016Synthesis of nano structural Cr3C2 powders from water soluble precursors
- 2015Synthesis of nano structural WC-Co powders from water soluble precursors: effects of carbon content to chemical and phase structure
- 2015Synthesis of nano structural WC-Co powders from water soluble precursors:Effects of tungsten source and synthesis atmosphere on chemical and phase structure evolutions
- 2015Sintering of nano structural WC with cobalt matrix synthesised from soluble raw materials
- 2015Novel titanium carbide based hard metal alternative for traditional WC-Co
- 2012Microstructure analysis and damage patterns of thermally cycled Ti-49.7Ni (at.%) wirescitations
- 2011R-phase actuated SMA composites in adaptive wind turbine blade trailing edge
Places of action
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document
Preparing nano structural WC-Co powders by utilizing soluble raw materials by spray drying and synthesis method
Abstract
Thermal sprayed carbide such as WC-Co(Cr) and Cr3C2-NiCrcoatings are well known and widely used for wearprotection purposes. Submicron, nano-sized and multimodalcarbides in cermets have shown promising results ingaining hardness and wear performance. Presented study isa part of the research aiming to create a novel powdermanufacturing route for homogenous nano structuralWC-Co(Cr) powder for thermal spraying by utilizing watersoluble raw materials. One major challenge for thismanufacturing route is to produce dense and sphericalpowder structure by spray drying method which duringsynthesis stage will conserve shape even if desired phasestructure will form. In this study powders weremanufactured via spray drying method from water basedsolution with raw materials ammonium meta tungstate (AMT)as a tungsten source, glycine as a carbon source andcobalt acetate as a cobalt source. Before the spraydrying stage additives were added to experimentalsolutions to modify solution properties. Solutions werecharacterised by rheometer and in addition pH-value wasmeasured. Also the effects of spray drying parameters topowder form and particle size was analysed. After spraydrying powders were heat treated in Ar atmosphere. Themorphology and internal structure of powder particle sizewas analysed with scanning electron microscopy (SEM) bothafter spray drying and heat treatment stage and an X-raydiffractometer (XRD) was used for phase structureanalysis. With modifications on solution by additives andon spray drying parameters powder particle size, shapeand density could be improved but still particle shapewas not conserved during the heat treatment stage.