Abstract：The phase field method was used to simulate the growth of pure α-Al2O3 grain generated in situ during high temperature sintering process of alumina fiber prepared by the sol-gel method. Combined with experiments, study the growth behavior and dynamics of α-Al2O3 grains at different sintering temperatures and different initial Al2O3 grain size in the high temperature sintering stage was studied. Both phase field simulation and experimental results show that in the sintering temperature range of 1200-1 500 ℃, the grain growth rate increases significantly with the increase of the sintering temperature, and the grain growth rate is the fastest in the temperature range of 1 400-1 500 ℃. The smaller the initial grain size, the greater the grain growth rate. The simulation result shows that the increasing unevenness of grain size can also promote grain growth.
张鲁, 刘陆群, 唐赛, 马运柱, 刘文胜. 温度和晶粒尺寸及分布影响下的氧化铝纤维烧结晶粒长大的相场模拟[J]. 粉末冶金材料科学与工程, 2021, 26(4): 320-328.
ZHANG Lu, LIU Luqun, TANG Sai, MA Yunzhu, LIU Wensheng. Phase field simulation of grain growth in alumina fiber sintering under the influences of temperature, grain size and distribution. Materials Science and Engineering of Powder Metallurgy, 2021, 26(4): 320-328.
[1] 袁源. 耐高温陶瓷材料的研究现状[J]. 中国科技信息, 2007(18): 104-106. YUAN Yuan.Research status of high temperature resistant ceramic materials[J]. China Science and Technology Information, 2007(18): 104-106. [2] 张勇, 何新波, 曲选辉, 等. 超高温材料的研究进展及应用[J]. 材料导报, 2007, 21(12): 60-64. ZHANG Yong, HE Xinbo, QU Xuanhui, et al.Research progress and application of ultra high-temperature materials[J]. Materials Review, 2007, 21(12): 60-64. [3] 陈蓉, 才鸿年. 氧化铝长纤维的性能和应用[J]. 兵器材料科学与工程, 2001, 24(4): 70-72. CHEN Rong, CAI Hongnian.Performance and application of alumina long fiber[J]. Ordnance Material Science and Engineering, 2001, 24(4): 70-72. [4] SAKKA S.Current and future possibilities of sol-gel process[J]. Transactions of the Indian Ceramic Society, 2005, 64(1): 13-19. [5] TANH B, GUO C S.Preparation of long alumina fibers by sol-gel method using malic acid[J]. Transactions of Nonferrous Metals Society of China, 2011, 21(7): 1563-1567. [6] ROQUE-RUIZ J H, MEDELLíN-CASTILLO N A, REYES-LÓPEZ S Y. Fabrication of α-alumina fibers by sol-gel and electrospinning of aluminum nitrate precursor solutions[J]. Results in Physics, 2019, 12: 193-204. [7] LI X D, XUH N, WANG Q, et al.Control of continuous α-Al2O3 fibers by self-seeding and SiO2-sol doping[J]. Ceramics International, 2019, 45(9): 12053-12059. [8] LIU L Q, WANG J, MA Y Z, et al.Preparation of continuous alumina fiber with nano grains by the addition of iron sol[J]. Materials, 2020, 13(23): 1-14. [9] KOBAYASHI R, WARREN J A, CARTER W C.A continuum model of grain boundaries[J]. Physica D (Nonlinear Phenomena), 2000, 140(1/2): 141-150. [10] CHIRRANJEEVI B, ABINANDANAN T, GURURAJAN M.A phase field study of morphological instabilities in multilayer thin films[J]. Acta Materialia, 2009, 57(4): 1060-1067. [11] CHEN L Q, YANG W.Computer simulation of the domain dynamics of a quenched system with a large number of nonconserved order parameters: The grain-growth kinetics[J]. Physical Review B, 1994, 50(21): 15752-15756. [12] JING X N, ZHAO J H, HE L H.2-D phase field simulation of coupled pore and grain topological evolution during final stage sintering[J]. Materials Science and Engineering A, 2003, 21: 170-173. [13] ASP K, ÅGREN J.Phase-field simulation of sintering and related phenomena-A vacancy diffusion approach[J]. Acta Materialia, 2006, 54(5): 1241-1248. [14] DENG J.A phase field model of sintering with direction-dependent diffusion[J]. Materials Transactions, 2012, 53(2): 385-389. [15] SUDIPTA B, DANIEL S, VIKAS T.Implementation of a phase field model for simulating evolution of two powder particles representing microstructural changes during sintering[J]. Journal of Materials Science, 2018, 53(8): 5799-5825. [16] WANG Y U.Computer modeling and simulation of solid-state sintering: A phase field approach[J]. Acta Materialia, 2006, 54(4): 953-961. [17] KUMAR V, FANG Z, FIFE P.Phase field simulations of grain growth during sintering of two unequal-sized particles[J]. Materials Science and Engineering A, 2010, 528(1): 254-259. [18] BISWAS S, SCHWEN D, WANG H, et al.Phase field modeling of sintering: Role of grain orientation and anisotropic properties[J]. Computational Materials Science, 2018, 148: 307-319. [19] SHINAGAWA K, MAKI S, YOKOTA K.Phase-field simulation of platelike grain growth during sintering of alumina[J]. Journal of the European Ceramic Society, 2014, 34(12): 3027-3036. [20] DZEPINA B, BALINT D, DINI D.A phase field model of pressure-assisted sintering[J]. Journal of the European Ceramic Society, 2019, 39(2/3): 173-182. [21] YANG Y, OYEDEJI T D, KÜHN P, et al. Investigation on temperature-gradient-driven effects in unconventional sintering via non-isothermal phase-field simulation[J]. Scripta Materialia, 2020, 186: 152-157. [22] KAZARYAN A, WANG Y, PATTON B R.Generalized phase field approach for computer simulation of sintering: incorporation of rigid-body motion[J]. Scripta Materialia, 1999, 41(5): 487-492. [23] HÖTZER J, SEIZ M, KELLNER M, et al. Phase-field simulation of solid state sintering[J]. Acta Materialia, 2019, 164: 184-195. [24] MCHALE J, AUROUX A, PERROTTA A, et al.Surface energies and thermodynamic phase stability in nanocrystalline aluminas[J]. Science, 1997, 277(5327): 788-791. [25] TANG X, LAGERLÖFK P D, HEUER A H. Determination of pipe diffusion coefficients in undoped and magnesia‐doped sapphire (α-Al2O3): A study based on annihilation of dislocation dipoles[J]. Journal of the American Ceramic Society, 2003, 86(4): 560-565. [26] CHOCKALINGAM K, KOUZNETSOVA V G, VANDERSLUIS O, et al.2D Phase field modeling of sintering of silver nanoparticles[J]. Computer Methods in Applied Mechanics and Engineering, 2016, 312: 492-508. [27] AHMED K, YABLINSKY C A, SCHULTE A, et al.Phase field modeling of the effect of porosity on grain growth kinetics in polycrystalline ceramics[J]. Modelling and Simulation in Materials Science and Engineering, 2013, 21(6): 065005. [28] RIOS P.Abnormal grain growth development from uniform grain size distributions[J]. Acta Materialia, 1997, 45(4): 1785-1789.
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