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Novel online diagnostic analysis for particle in-flight properties in cold spraying

Tutkimustuotos: Konferenssiesitys, posteri tai abstrakti

Standard

Novel online diagnostic analysis for particle in-flight properties in cold spraying. / Koivuluoto, Heli; Matikainen, Ville; Larjo, Jussi; Vuoristo, Petri.

2017. Julkaisun esittämispaikka: International Thermal Spray Conference & Exhibition 2017, Düsseldorf, Saksa.

Tutkimustuotos: Konferenssiesitys, posteri tai abstrakti

Harvard

Koivuluoto, H, Matikainen, V, Larjo, J & Vuoristo, P 2017, 'Novel online diagnostic analysis for particle in-flight properties in cold spraying' Artikkeli esitetty, Düsseldorf, Saksa, 7/06/17 - 9/06/17, .

APA

Koivuluoto, H., Matikainen, V., Larjo, J., & Vuoristo, P. (2017). Novel online diagnostic analysis for particle in-flight properties in cold spraying. Julkaisun esittämispaikka: International Thermal Spray Conference & Exhibition 2017, Düsseldorf, Saksa.

Vancouver

Koivuluoto H, Matikainen V, Larjo J, Vuoristo P. Novel online diagnostic analysis for particle in-flight properties in cold spraying. 2017. Julkaisun esittämispaikka: International Thermal Spray Conference & Exhibition 2017, Düsseldorf, Saksa.

Author

Koivuluoto, Heli ; Matikainen, Ville ; Larjo, Jussi ; Vuoristo, Petri. / Novel online diagnostic analysis for particle in-flight properties in cold spraying. Julkaisun esittämispaikka: International Thermal Spray Conference & Exhibition 2017, Düsseldorf, Saksa.

Bibtex - Lataa

@conference{190f5f46a86740738ad01a250d1e6017,
title = "Novel online diagnostic analysis for particle in-flight properties in cold spraying",
abstract = "In cold spraying, powder particles are accelerated by preheated supersonic gas to high velocities and sprayed on a substrate. The particle velocities depend on the equipment design and process parameters e.g. on the type of the process gas and its pressure and temperature. These, in turn, affect the coating properties. The particle velocities in cold spraying are known to be high and the particle temperatures low, which can, therefore, be a challenge for the diagnostic methods. A novel optical online diagnostic system, HiWatch HR, will open new possibilities for measuring particle in-flight properties in high-kinetic thermal spray processes such as cold spray processes. The system employs an imaging detector with the laser backlight illumination of the particle jet using telecentric optics. This technique enables an accurate small diameter particle size measurement with a large sample volume. The aim of this study was to evaluate the particle velocities of metallic particles sprayed with high-pressure and low-pressure cold spray systems and with varying process parameters. The measured in-flight particle properties of each spray condition were further linked to the resulting coating properties. In addition, the camera was able to provide information about variations during the spraying, e.g. fluctuating powder feeding. Such information is important from the process control point of view and can be used as a quality control tool.",
author = "Heli Koivuluoto and Ville Matikainen and Jussi Larjo and Petri Vuoristo",
year = "2017",
language = "English",
note = "International Thermal Spray Conference & Exhibition 2017 : Thermal Spray paves the Way to the Stars, ITSC2017 ; Conference date: 07-06-2017 Through 09-06-2017",
url = "https://www.dvs-ev.de/call4papers/index.cfm?vid=85",

}

RIS (suitable for import to EndNote) - Lataa

TY - CONF

T1 - Novel online diagnostic analysis for particle in-flight properties in cold spraying

AU - Koivuluoto, Heli

AU - Matikainen, Ville

AU - Larjo, Jussi

AU - Vuoristo, Petri

PY - 2017

Y1 - 2017

N2 - In cold spraying, powder particles are accelerated by preheated supersonic gas to high velocities and sprayed on a substrate. The particle velocities depend on the equipment design and process parameters e.g. on the type of the process gas and its pressure and temperature. These, in turn, affect the coating properties. The particle velocities in cold spraying are known to be high and the particle temperatures low, which can, therefore, be a challenge for the diagnostic methods. A novel optical online diagnostic system, HiWatch HR, will open new possibilities for measuring particle in-flight properties in high-kinetic thermal spray processes such as cold spray processes. The system employs an imaging detector with the laser backlight illumination of the particle jet using telecentric optics. This technique enables an accurate small diameter particle size measurement with a large sample volume. The aim of this study was to evaluate the particle velocities of metallic particles sprayed with high-pressure and low-pressure cold spray systems and with varying process parameters. The measured in-flight particle properties of each spray condition were further linked to the resulting coating properties. In addition, the camera was able to provide information about variations during the spraying, e.g. fluctuating powder feeding. Such information is important from the process control point of view and can be used as a quality control tool.

AB - In cold spraying, powder particles are accelerated by preheated supersonic gas to high velocities and sprayed on a substrate. The particle velocities depend on the equipment design and process parameters e.g. on the type of the process gas and its pressure and temperature. These, in turn, affect the coating properties. The particle velocities in cold spraying are known to be high and the particle temperatures low, which can, therefore, be a challenge for the diagnostic methods. A novel optical online diagnostic system, HiWatch HR, will open new possibilities for measuring particle in-flight properties in high-kinetic thermal spray processes such as cold spray processes. The system employs an imaging detector with the laser backlight illumination of the particle jet using telecentric optics. This technique enables an accurate small diameter particle size measurement with a large sample volume. The aim of this study was to evaluate the particle velocities of metallic particles sprayed with high-pressure and low-pressure cold spray systems and with varying process parameters. The measured in-flight particle properties of each spray condition were further linked to the resulting coating properties. In addition, the camera was able to provide information about variations during the spraying, e.g. fluctuating powder feeding. Such information is important from the process control point of view and can be used as a quality control tool.

M3 - Paper, poster or abstract

ER -