Sapphire Crystal Growth and Applications

Tatartchenko, Vitali A.

doi:10.1002/9780470012086.ch10

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Discussion2

Introduction2

Experimental Results For Alkali Halides and Sapphire (Ir Tra1

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2017

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Cited by 11 publications

(10 citation statements)

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“…[3], we described our experiments concerning recording of the characteristic spectra during sapphire (Al 2 O 3 ) crystallization from the melt. Sapphire is transparent over a wide range of the spectrum from infrared to ultraviolet [4]. The main result is presented in Fig.…”

Section: Experimental Results For Alkali Halides and Sapphire (Ir Tramentioning

confidence: 92%

Characteristic IR radiation accompanying crystallization and window of transparency for it

Tatartchenko

2008

Journal of Crystal Growth

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Section: Experimental Results For Alkali Halides and Sapphire (Ir Tramentioning

confidence: 92%

Characteristic IR radiation accompanying crystallization and window of transparency for it

Tatartchenko

2008

Journal of Crystal Growth

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“…With the rod (7), the piston can move up and down at a controlled rate and a desired force. The sapphire barrel can withstand high pressure, and it is transparent in a broad range of wavelengths-from ultraviolet to infrared [59]. If scale factors will be taken in account, the experiment allows observing arisen CL, which occur inside the liquid and above of its surface (3) as it follows from the PeTa model.…”

Section: Discussionmentioning

confidence: 99%

“…The barrel (1) may be fabricated from a bulk sapphire single crystal, or of a profiled sapphire crystal [59] (Figure 14). The liquid (2) is saturated with the gas Figure 13.…”

Section: Discussionmentioning

confidence: 99%

Sonoluminescence as the PeTa Radiation

Tatartchenko¹

2017

OPJ

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In this paper, a model of cavitational luminescence (CL) and sonoluminescence (SL) is developed. The basis of the model is the PeTa (Perel'manTatartchenko) effect-a characteristic radiation under first-order phase transitions. The main role is given to the liquid, which is where the cavitation occurs. The evaporation of the liquid and subsequent vapor condensation inside the bubble are responsible for the CL and SL. Apparently, the dissolved gases and other impurities in the liquid are responsible for peaks that appear at the background of the main spectrum. They most likely are excited by a shock wave occurred during cavitation. The model explains the main experimental data. Thus, no mystery, no plasma, no Hollywood.

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“…The Kyropoulos (KP) method [1,2], the heat exchange (HE) method [1,3], the edge-defined, film-fed growth (EFG) method [1,4], and the Czochralski (CZ) method [1,5] are well known and important techniques for growing large high-quality sapphire crystals.…”

Section: Introductionmentioning

confidence: 99%