Chemical synthesis of WC-Co from water-soluble precursors : the effect of carbon and cobalt additions to WC synthesis

Ulla Kanerva (Corresponding Author), Marjaana Karhu, Juha Lagerbom, Anna Kronlöf, Mari Honkanen, Erja Turunen, Tarja Laitinen

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

Abstract

The chemical synthesis of WC-Co from water-soluble precursors and the effect of carbon content and cobalt addition were studied. Ammonium metatungstate AMT as tungsten source, glycine as a carbon source and cobalt acetate Co(C2H3O2)2 as a cobalt source was dissolved in water and spray-dried, and thermal synthesis in Ar atmosphere was performed. In order to understand the effects of carbon content and cobalt addition on synthesis steps, and the chemical and phase structure, thermogravimetry (TGA) with Differential Scanning Calorimetry (DCS) and mass spectrometry was used together with X-ray diffractometry and chemical analysis. The results reveal that carbon content mainly affected reduction temperatures and cobalt addition to reaction route and solid state synthesis temperature. This presented manufacturing route with water-soluble raw materials was a potential way of preparing nanostructural WC-Co composition with the correct phase structure and chemical composition.
Original languageEnglish
Pages (from-to)69-75
JournalInternational Journal of Refractory Metals and Hard Materials
Volume56
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

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Cobalt
Carbon
Water
Phase structure
Chemical analysis
Tungsten
Glycine
X ray diffraction analysis
Mass spectrometry
Thermogravimetric analysis
Amino acids
Differential scanning calorimetry
Raw materials
Acetates
Temperature

Keywords

  • nano-sized WC-Co synthesis
  • spray drying
  • water soluble precursors
  • ProperPart

Cite this

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title = "Chemical synthesis of WC-Co from water-soluble precursors : the effect of carbon and cobalt additions to WC synthesis",
abstract = "The chemical synthesis of WC-Co from water-soluble precursors and the effect of carbon content and cobalt addition were studied. Ammonium metatungstate AMT as tungsten source, glycine as a carbon source and cobalt acetate Co(C2H3O2)2 as a cobalt source was dissolved in water and spray-dried, and thermal synthesis in Ar atmosphere was performed. In order to understand the effects of carbon content and cobalt addition on synthesis steps, and the chemical and phase structure, thermogravimetry (TGA) with Differential Scanning Calorimetry (DCS) and mass spectrometry was used together with X-ray diffractometry and chemical analysis. The results reveal that carbon content mainly affected reduction temperatures and cobalt addition to reaction route and solid state synthesis temperature. This presented manufacturing route with water-soluble raw materials was a potential way of preparing nanostructural WC-Co composition with the correct phase structure and chemical composition.",
keywords = "nano-sized WC-Co synthesis, spray drying, water soluble precursors, ProperPart",
author = "Ulla Kanerva and Marjaana Karhu and Juha Lagerbom and Anna Kronl{\"o}f and Mari Honkanen and Erja Turunen and Tarja Laitinen",
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doi = "10.1016/j.ijrmhm.2015.11.014",
language = "English",
volume = "56",
pages = "69--75",
journal = "International Journal of Refractory Metals and Hard Materials",
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}

Chemical synthesis of WC-Co from water-soluble precursors : the effect of carbon and cobalt additions to WC synthesis. / Kanerva, Ulla (Corresponding Author); Karhu, Marjaana; Lagerbom, Juha; Kronlöf, Anna; Honkanen, Mari; Turunen, Erja; Laitinen, Tarja.

In: International Journal of Refractory Metals and Hard Materials, Vol. 56, 2016, p. 69-75.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Chemical synthesis of WC-Co from water-soluble precursors : the effect of carbon and cobalt additions to WC synthesis

AU - Kanerva, Ulla

AU - Karhu, Marjaana

AU - Lagerbom, Juha

AU - Kronlöf, Anna

AU - Honkanen, Mari

AU - Turunen, Erja

AU - Laitinen, Tarja

PY - 2016

Y1 - 2016

N2 - The chemical synthesis of WC-Co from water-soluble precursors and the effect of carbon content and cobalt addition were studied. Ammonium metatungstate AMT as tungsten source, glycine as a carbon source and cobalt acetate Co(C2H3O2)2 as a cobalt source was dissolved in water and spray-dried, and thermal synthesis in Ar atmosphere was performed. In order to understand the effects of carbon content and cobalt addition on synthesis steps, and the chemical and phase structure, thermogravimetry (TGA) with Differential Scanning Calorimetry (DCS) and mass spectrometry was used together with X-ray diffractometry and chemical analysis. The results reveal that carbon content mainly affected reduction temperatures and cobalt addition to reaction route and solid state synthesis temperature. This presented manufacturing route with water-soluble raw materials was a potential way of preparing nanostructural WC-Co composition with the correct phase structure and chemical composition.

AB - The chemical synthesis of WC-Co from water-soluble precursors and the effect of carbon content and cobalt addition were studied. Ammonium metatungstate AMT as tungsten source, glycine as a carbon source and cobalt acetate Co(C2H3O2)2 as a cobalt source was dissolved in water and spray-dried, and thermal synthesis in Ar atmosphere was performed. In order to understand the effects of carbon content and cobalt addition on synthesis steps, and the chemical and phase structure, thermogravimetry (TGA) with Differential Scanning Calorimetry (DCS) and mass spectrometry was used together with X-ray diffractometry and chemical analysis. The results reveal that carbon content mainly affected reduction temperatures and cobalt addition to reaction route and solid state synthesis temperature. This presented manufacturing route with water-soluble raw materials was a potential way of preparing nanostructural WC-Co composition with the correct phase structure and chemical composition.

KW - nano-sized WC-Co synthesis

KW - spray drying

KW - water soluble precursors

KW - ProperPart

U2 - 10.1016/j.ijrmhm.2015.11.014

DO - 10.1016/j.ijrmhm.2015.11.014

M3 - Article

VL - 56

SP - 69

EP - 75

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

SN - 0958-0611

ER -