Abstract
| Original language | English |
|---|---|
| Title of host publication | Applied Material Research at VTT |
| Subtitle of host publication | Symposium on Applied Materials |
| Place of Publication | Espoo |
| Publisher | VTT Technical Research Centre of Finland |
| Pages | 188-199 |
| ISBN (Electronic) | 951-38-6312-3 |
| ISBN (Print) | 951-38-6311-5 |
| Publication status | Published - 2006 |
| MoE publication type | B3 Non-refereed article in conference proceedings |
| Event | Internal Symposium on Applied Materials - Espoo, Finland Duration: 8 Jun 2006 → 8 Jun 2006 |
Publication series
| Series | VTT Symposium |
|---|---|
| Number | 244 |
| ISSN | 0357-9387 |
Conference
| Conference | Internal Symposium on Applied Materials |
|---|---|
| Country | Finland |
| City | Espoo |
| Period | 8/06/06 → 8/06/06 |
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Improved mechanical properties by nanoreinforced HVOF-sprayed ceramic composite coatings. / Turunen, Erja; Varis, Tommi; Gustafsson, Tom E.; Keskinen, Jari; Lintunen, Pertti; Lintula, Pekka; Hannula, Simo-Pekka.
Applied Material Research at VTT: Symposium on Applied Materials. Espoo : VTT Technical Research Centre of Finland, 2006. p. 188-199 (VTT Symposium; No. 244).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific
TY - GEN
T1 - Improved mechanical properties by nanoreinforced HVOF-sprayed ceramic composite coatings
AU - Turunen, Erja
AU - Varis, Tommi
AU - Gustafsson, Tom E.
AU - Keskinen, Jari
AU - Lintunen, Pertti
AU - Lintula, Pekka
AU - Hannula, Simo-Pekka
PY - 2006
Y1 - 2006
N2 - HVOF-sprayed ceramic coatings can be considered as potential candidates for applications where good chemical and corrosion resistance of ceramics is needed.Due to the less porous structure of the HVOF-sprayed coating as compared to the plasma sprayed one, the protection capability of the coating is increased.Despite the dense structure, the coating properties are inferior as compared to bulk ceramics because of pores and microcracks, which influence adversely the coating properties (i.e., toughness, hardness and wear resistance).Improved mechanical properties have widely been demonstrated for bulk nanocrystalline materials.Especially with ceramic materials the decreasing of grain size has been found to be favorable.Dense nanostructured ceramic coatings containing various nanostructured particles were manufactured by HVOF-spraying by using an HV-2000 spray gun.Mechanical properties, especially elastic modulus and relative fracture toughness, were studied.The techniques used were instrumented nanoindentation and KIC evaluation.As a result coatings with nearly 100% improvements in relative fracture toughness were produced for nanoreinforced composite coating.
AB - HVOF-sprayed ceramic coatings can be considered as potential candidates for applications where good chemical and corrosion resistance of ceramics is needed.Due to the less porous structure of the HVOF-sprayed coating as compared to the plasma sprayed one, the protection capability of the coating is increased.Despite the dense structure, the coating properties are inferior as compared to bulk ceramics because of pores and microcracks, which influence adversely the coating properties (i.e., toughness, hardness and wear resistance).Improved mechanical properties have widely been demonstrated for bulk nanocrystalline materials.Especially with ceramic materials the decreasing of grain size has been found to be favorable.Dense nanostructured ceramic coatings containing various nanostructured particles were manufactured by HVOF-spraying by using an HV-2000 spray gun.Mechanical properties, especially elastic modulus and relative fracture toughness, were studied.The techniques used were instrumented nanoindentation and KIC evaluation.As a result coatings with nearly 100% improvements in relative fracture toughness were produced for nanoreinforced composite coating.
M3 - Conference article in proceedings
SN - 951-38-6311-5
T3 - VTT Symposium
SP - 188
EP - 199
BT - Applied Material Research at VTT
PB - VTT Technical Research Centre of Finland
CY - Espoo
ER -