Abstract
The phase transition alumina γ, ẟ, θ, α with boehmite nanostructure have been prepared, and a relative study between the crystal structure, annealing temperature, and photoluminescence properties are reported in this paper. The effects of different temperatures up to 1600 ℃ on the boehmite nanostructure revealed different phases of alumina which are characterized using X-ray diffraction (XRD) technique. The evolution of crystal micrographs and grain size during the transformation are studied using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The emission spectra of the obtained samples are investigated using photoluminescence (PL) spectroscopy in which the traces of inherent impurities of Cr3+ are detected in the α-Al2O3 without any doping. The XRD and SEM/TEM analysis show that with increasing temperature, the transformation of boehmite into a well-crystallized α-Al2O3 and the micrographs from nanoplatelets with spindle-like edges to vermicular structure take place. Thus, this paper reports an important role of temperature in the phase transition, morphologies, and in the photoluminescence properties of the obtained samples. The optical properties investigate the defects associated with each phase of alumina in the transition alumina material system. The considerable sign of the crystal phase found that the emission band spectra of the corresponding phase vary greatly due to the presence of traces of uncontrolled impurity like Cr3+ found in the sample. The most prominent peak corresponding to the ruby laser has been found due to these Cr3+ ions in the most stable phase, α-Al2O3 which is the final product.
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D.X. Hongyi, J.M. Li, A novel method for synthesizing well-defined boehmite hollow microspheres. J. Colloid Interface Sci. 504, 660–668 (2017)
P.S. Behera, S. Bhattacharyya, Thermal decomposition, phase evolution and morphology study of combustion synthesized alumina powder—influence of precursor pH. Mater. Chem. Phys. 259, 124030 (2021)
A.M. Abyzov, N.A. Khristyuk, V.V. Kozlov et al., Alumina ceramics doped with manganese titanate via applying Mn–Ti–O coatings to corundum micro powder. J. Korean Ceram. Soc. 57, 692–707 (2020)
A. Fathi, H. Baharvandi, Effect of heat-treatment temperature on mechanical properties and microstructure of alumina–SiC nanocomposite. J. Korean Ceram. Soc. 57, 503–512 (2020)
R.K. Pati, J.C. Ray, P. Pramanik, A novel chemical route for the synthesis of nanocrystalline α-Al2O3 powder. Mater. Lett. 44, 299–303 (2000)
F.-S. Pei-Ling Chang, K.-C. Yen, H.-L. Wen, Examinations on the critical and primary crystallite sizes during θ- to α-phase transformation of ultrafine alumina powders. Nano Lett. 1, 253–261 (2001)
L. Shen, H. Chunfeng, Y. Sakka, Q. Huang, Study of phase transformation behaviour of alumina through precipitation method. J. Phys. D Appl. Phys. 45, 215302 (2012)
A. Kostyukov, M. Baronskiy, A. Rastorguev, V. Snytnikov, V. Snytnikov, A. Zhuzhgov, A. Ishchenko, Photoluminescence of Cr3+ in nanostructured Al2O3 synthesized by evaporation using a continuous wave CO2 laser. RSC Adv. 6, 2072 (2016)
A. Boumaza, L. Favaro, J. Lédion, G. Sattonnay, J.B. Brubach, P. Berthet, A.M. Huntz, P. Roy, R. Tétot, Transition alumina phases induced by heat treatment of boehmite: an X-ray diffraction and infrared spectroscopy study. J. Solid State Chem. 182, 1171–1176 (2009)
A. Pearson, Aluminium Oxide, Activated Kirk–Othmer Encyclopedia of Chemical Technology, vol. 2 (Wiley, New York, 1994), p. 291
C. Misra, Aluminium Oxide, Hydrated in Kirk–Othmer Encyclopedia of Chemical Technology, vol. 2 (Wiley, New York, 1994), p. 317
N. Shahid, R.G. Villate, A.R. Barron, Chemically functionalized alumina nanoparticle effect on carbon fiber/epoxy composites. Compos. Sci. Technol. 65, 2250–2258 (2005)
B.E. Yoldas, Alumina sol preparation from alkoxides. Ceram. Bull. 54, 289–290 (1975)
B.E. Yoldas, Alumina gels that form porous transparent Al2O3. J. Mater. Sci. 10, 1856–1860 (1975)
R.K. Pati, J.C. Ray, P. Pramanik, A novel chemical route for the synthesis of nanocrystalline α-Al2O3. Mater. Lett. 44, 299–303 (2000)
F. Karouia, M. Boualleg, M. Digne, P. Alphonse, The impact of nanocrystallite size and shape on phase transformation: application to the boehmite/alumina transformation. Adv. Powder Technol. 27, 1814–1820 (2016)
Z.Q. Yu, C.X. Wang, X.T. Gu, C. Li, Photoluminescent properties of boehmite whisker prepared by sol-gel process. J. Lumin. 106, 153–157 (2004)
L. Kovarik, M. Bowden, J. Szanyi, High-temperature transition alumina’s in δ-Al2O3/θ-Al2O3 stability range: review. J. Catal. 393, 357–368 (2021)
M. Chmielewski, K. Pietrzak, Processing, microstructure and mechanical properties of Al2O3–Cr nanocomposites. J. Eur. Ceram. Soc. 27, 1273–1279 (2007)
Lu. Shen, Hu. Chunfeng, S. Zhou, A. Mukherjee, Q. Huang, Phase-dependent photoluminescence behaviour of Cr-doped alumina phosphors. Opt. Mater. 35, 1268–1272 (2013)
G. Rani, P.D. Sahare, Structural and photoluminescent properties of Al2O3: Cr3+ nanoparticles via solution combustion synthesis method. Adv. Powder Technol. 25, 767–772 (2014)
X. Krokidis, P. Raybaud, A.-E. Gobichon, B. Rebours, P. Euzen, H. Toulhoat, Theoretical study of the dehydration process of boehmite to γ-alumina. J. Phys. Chem. B 105, 5121–5130 (2001)
Lu. Xingwen, J. Yang, X. Li, F. Sun, F. Wang, Y. Chao, Effects of phase transformation on properties of alumina ceramic membrane: a new assessment based on quantitative X-ray diffraction (QXRD). Chem. Eng. Sci. 199, 349–358 (2019)
G. Paglia, C.E. Buckley, A.L. Rohl, R.D. Hart, K. Winter, A.J. Studer, B.A. Hunter, J.V. Hanna, Boehmite derived γ-alumina system. 1. Structural evolution with temperature, with the identification and structural determination of a new transition phase, γ′-alumina. Chem. Mater. 16, 220–236 (2004)
G. Rani, P.D. Sahare, Effect of temperature on structural and optical properties of boehmite nanostructure. Int. J. Appl. Ceram. Technol. 12, 124–132 (2015)
G. Rani, P.D. Sahare, Effect of phase transitions on thermoluminescence characteristics of nanocrystalline alumina. Nucl. Instrum. Methods Phys. Res. Sect. B Beam Interact. Mater. Atoms 311, 71–77 (2013)
S. Cava, S.M. Tebcherani, S.A. Pianaro, C.A. Paskocimas, E. Longo, J.A. Varela, Structural and spectroscopic analysis of γ-Al2O3 to α-Al2O3–CoAl2O4 phase transition. Mater. Chem. Phys. 97, 102–108 (2006)
Z.Q. Yu, C.X. Wang, T.X. Gu, C. Li, Hydrothermal synthesis of boehmite (γ-AlOOH) nanoplatelets and nanowires: pH-controlled morphologies. J. Lumin. 106, 153–157 (2004)
T. Toyoda, T. Obikawa, T. Shigenari, Photoluminescence spectroscopy of Cr3+ in ceramic Al2O3. Mater. Sci. Eng. B 54, 33–37 (1998)
X.Y. Chen, H.S. Huh, S.W. Lee, Hydrothermal synthesis of boehmite (γ-AlOOH) nanoplatelets and nanowires: pH-controlled morphologies. Nanotechnology 18, 1–5 (2007)
L. Trinkler, B. Berzina, D. Jakimovica, J. Grabis, I. Steins, UV-light induced luminescence processes in Al2O3 bulk and nano-size powders. Opt. Mater. 32, 789–795 (2010)
K.S. Choudhari, D. Hebbar, S.D. Kulkarni, C. Santhosh, S.D. George, Cr3+ doped nanoporous anodic alumina: facile microwave-assisted doping to realize nanoporous ruby and phase-dependent photoluminescence. Ceram. Int. 45, 12130–12137 (2019)
R. Krishnan, R. Kesavamoorthy, S. Dash, A.K. Tyagi, B. Raj, Raman spectroscopic and photoluminescence investigations on laser surface modified α-Al2O3 coatings. Scripta Mater. 48, 1099–1104 (2003)
R. Jankowiak, K. Roberts, P. Tomasik, M. Sikora, G.J. Small, C.H. Schilling, Probing the crystalline environment of α-alumina via luminescence of metal ion impurities: an optical method of ceramic flaw detection. Mater. Sci. Eng. A 281, 45–55 (2000)
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The author is thankful to the Department of Physics and Astrophysics, and University Science Instrumentation Centre (USIC), University of Delhi for providing necessary assistance and instrumentation support.
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Rani, G. Photoluminescence characterizations in phase transition alumina with boehmite nanostructures. J. Korean Ceram. Soc. 58, 747–752 (2021). https://doi.org/10.1007/s43207-021-00151-3
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DOI: https://doi.org/10.1007/s43207-021-00151-3