A high power diode laser-based ceramic tile grout sealing system: grout characteristics, hand-held sealing system development and associated safety aspects

Lawrence, Jonathan and Schmidt, M. J. J. and Li, L. and Edwards, R. E. and Gale, A. W. (2002) A high power diode laser-based ceramic tile grout sealing system: grout characteristics, hand-held sealing system development and associated safety aspects. In: Recent Research Developments in Materials Science & Engineering. Transworld Research Network, India, pp. 41-67. ISBN 9788178950570

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Abstract

The void between adjoining ceramic tiles has been successfully sealed by means of a high power diode laser (HPDL) and a specially developed grout material. A single-stage process has been developed which uses a crushed ceramic tile mix to act as a tough, inexpensive bulk substrate and a glazed enamel surface to provide an impervious surface glaze. The single-stage ceramic tile grout sealing process was carried out in normal atmospheric conditions. Tiles were successfully sealed with power densities as low as 1.25 kW/cm2 and at rates of up to 600 mm/min, with the resultant glazes displaying no discernible cracks or porosities. Bonding of the enamel to the crushed ceramic tile mix was identified as being primarily due to van der Waals forces and, on a very small scale, some of the crushed ceramic tile mix material dissolving into the glaze. In terms of mechanical, physical and chemical characteristics, the single-stage ceramic tile grout was found to be far superior to the conventional epoxy tile grout and, in many instances, matched and occasionally surpassed that of the ceramic tiles themselves. What is more, the development of a hand-held HPDL beam delivery unit and the related procedures necessary to lead to the commercialisation of the single-stage ceramic tile grout sealing process are presented. Further, an appraisal of the potential hazards associated with the use of the HPDL in an industrial environment and the solutions implemented to ensure that the system complies with the relevant safety standards are given.

Item Type:Book Section
Additional Information:The void between adjoining ceramic tiles has been successfully sealed by means of a high power diode laser (HPDL) and a specially developed grout material. A single-stage process has been developed which uses a crushed ceramic tile mix to act as a tough, inexpensive bulk substrate and a glazed enamel surface to provide an impervious surface glaze. The single-stage ceramic tile grout sealing process was carried out in normal atmospheric conditions. Tiles were successfully sealed with power densities as low as 1.25 kW/cm2 and at rates of up to 600 mm/min, with the resultant glazes displaying no discernible cracks or porosities. Bonding of the enamel to the crushed ceramic tile mix was identified as being primarily due to van der Waals forces and, on a very small scale, some of the crushed ceramic tile mix material dissolving into the glaze. In terms of mechanical, physical and chemical characteristics, the single-stage ceramic tile grout was found to be far superior to the conventional epoxy tile grout and, in many instances, matched and occasionally surpassed that of the ceramic tiles themselves. What is more, the development of a hand-held HPDL beam delivery unit and the related procedures necessary to lead to the commercialisation of the single-stage ceramic tile grout sealing process are presented. Further, an appraisal of the potential hazards associated with the use of the HPDL in an industrial environment and the solutions implemented to ensure that the system complies with the relevant safety standards are given.
Keywords:grout characteristics, grout sealing, diode, laser, sealing system
Subjects:H Engineering > H680 Optoelectronic Engineering
H Engineering > H700 Production and Manufacturing Engineering
Divisions:College of Science > School of Engineering
ID Code:3179
Deposited By: Rosaline Smith
Deposited On:06 Aug 2010 12:17
Last Modified:13 Mar 2013 08:44

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