Triboluminescence and determination of elastic constants of crystals

Das, Josodhir; Chandra, B. P.; Tutakne, P. R.

doi:10.1002/pssa.2210110157

Cited by 15 publications

(3 citation statements)

References 4 publications

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“…In the 17th century, only five papers were published on ML ; in the 18th century, 15 papers were published ; in the 19th century, 19 papers were published ; in the 20th century, ~ 372 papers were published …”

Section: Literature Surveymentioning

confidence: 99%

Survey of the literature on mechanoluminescence from 1605 to 2013

2014

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Mechanoluminescence (ML) is a type of luminescence induced by any mechanical action on solids. The light emissions induced by elastic deformation, plastic deformation and fracture of solids are called elastico ML (EML), plastico ML (PML) and fracto ML (FML), respectively. Whereas nearly 50% of all organic molecular solids and inorganic salts exhibit FML, only a few solids exhibit EML and PML. The EML and FML of certain solids are so intense that they can be seen during daylight with the naked eye. Mechanolumnescence has a great potential for use in different types of mechano-optical devices such as stress sensors, damage sensors, impact sensors, fracture sensors and safety management monitoring systems. This article reports a survey of the literature from 1605 to 2013. Mechanoluminescence is studied by physicists, chemists, material scientists, geologists, medical scientists, engineers and technologists, among others and researchers will certainly benefit from the literature survey on ML given here. In addition, the field of mechanoluminescence may attract the interest of many new researchers.

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Section: Literature Surveymentioning

confidence: 99%

Survey of the literature on mechanoluminescence from 1605 to 2013

2014

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“…The response time of the combined detector-amplifier-storage-scope system is 5 ps. An impulse technique was employed for crushing of crystals, in which a fixed load was dropped on the crystal from different heights with the help of a pulley of negligible friction (Das et al 1972, Das andChandra 1974).…”

Section: Methodsmentioning

confidence: 99%

Kinetics of triboluminescence in crystals

Chandra¹

1977

J. Phys. D: Appl. Phys.

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On the basis of the condition of instability of cracks in a stressed body it is reported that the kinetics of triboluminescence in a crystal at a strain rate r can be expressed by the relation I=I0r2t2 exp(-t/ tau )-C1, where C1 is a constant. The value of the mechanical relaxation time tau of sugar crystals has been determined from triboluminescence measurements using the above relation and it has been found to be between 0.9 and 1.1 ms for different values of the strain rate of the crystal. It has been shown that a major portion of TBL in sugar crystals is due to the discharge of gases between the newly created surfaces of crystals during their fracture; however, some portion is due to other processes taking place in the crystal.

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“…The mass of each crystal used in the present investigation was (166 -1) mg. The measurement of TL intensity was carried out following the method employed in the earlier investigation (1). In this method, the T L intensity was measured by an RCA 931A photomultiplier tube coupled to a galvanomet e r of sensitivity 4 .…”

Section: Introductionmentioning

confidence: 99%