Preparation of nano-gypsum from anhydrite nanoparticles: Strongly increased Vickers hardness and formation of calcium sulfate nano-needles
Source abstract
Abstract
The preparation of calcium sulfate by flame synthesis resulted in the continuous production of anhydrite nanoparticles of 20–50 nm size. After compaction and hardening by the addition of water, the anhydrite nanoparticles reacted to nano-gypsum which was confirmed by X-ray diffraction, diffuse reflectance IR spectroscopy and thermal analysis. Mechanical properties were investigated in terms of Vickers hardness and revealed an up to three times higher hardness of nano-gypsum if compared to conventional micron-sized construction material. The improved mechanical properties of nano-gypsum could in part be due to the presence of calcium sulfate nano-needles in the nano-gypsum as showed by electron microscopy.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Microstructure and mechanical properties · Advanced materials and composites · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. Arabi-Katbi O.I., Pratsinis S.E., Morrison P.W. (2002). In situ infrared measurements on TiO2 flames: Gas and particle concentrations. AIChE J. 48(1):59–6810.1002/aic.690480108 ↗
2. Arikan M., Sobolev K. (2002). The optimization of gypsum-based composite material. Cem. Concr. Res. 32:1725–172810.1016/S0008-8846(02)00858-X ↗
3. Bushuew N., Maselnnikow B.M., Borisov V.M. (1983). Phase transformations in the dehydration of CaSO4 2· H2O. Russ. J. Inorg. Chem. 28:1404
4. Coquard P., Boistelle R., Amathieu L., Barriac P. (1994). Hardness, elasticity modulus and flexion strength of dry set plaster. J. Mater. Sci. 29:4611–461710.1007/BF00376285 ↗
5. Gleiter H. (1989). Nanocrystalline materials. Progr. Mater. Sci. 33(4):223–31510.1016/0079-6425(89)90001-7 ↗
6. Grass R.N., Stark W.J. (2005). Flame synthesis of calcium-, strontium-, barium fluoride nanoparticles and sodium chloride. Chem. Commun. 14:1767–176910.1039/b419099h ↗
7. Grass R.N., Tsantillis S., Pratsinis S.E. (2006). Design of high-temperature, gas-phase synthesis of hard or soft TiO2 agglomerates. AIChE J. 52:1318–132510.1002/aic.10739 ↗
8. Hajjouji A.E., Murat M. (1987). Strength development and hydrate formation rate, investigation on anhydrite binders. Cem. Concr. Res. 17:814–82210.1016/0008-8846(87)90044-5 ↗
9. Hand R.J. (1997). Calcium sulphate hydrates: A review. Br. Ceram. Trans. 96(3):116–120
10. Harris P.E., Hoyer S., Lindquist T.J., Stanford C.M. (2004). Alterations of surface hardness with gypsum die hardeners. J. Prost. Dent. 92(July):35–3810.1016/j.prosdent.2004.04.002 ↗
11. Huber M., W.J. Stark, S. Loher, M. Maciejewski, F. Krumeich & A. Baiker, 2005. Flame synthesis of calcium carbonate nanoparticles. Chem. Commun. 648–65010.1039/b411725e ↗
12. Johannessen T., Jenson J.R., Mosleh M., Johansen J., Quaade U., Livbjerg H. (2004). Flame synthesis of nanoparticles – Applications in catalysis and product/process engineering. Chem. Eng. Res. & Design. 82(A11):1444–145210.1205/cerd.82.11.1444.52025 ↗
13. Karni J., Karni E. (1995). Gypsum in construction: Origin and properties. Mater. Struct. 28:92–10010.1007/BF02473176 ↗
14. Kuang D.B., Xu A.W., Fang Y.P., Ou H.D., Liu H.Q. (2002). Preparation of inorganic salts (CaCO3, BaCO3, CaSO4) nanowires in the Triton X-100/cyclohexane/water reverse micelles. J. Crys. Growth. 244(3–4):379–38310.1016/S0022-0248(02)01684-6 ↗
15. Kumareson P., Devanarayanan S. (1992). Gypsum crystals grown in silica gel in the presence of citric acid as additive: A study on microhardness. J. Mater. Sci. Lett. 11:150–15110.1007/BF00724674 ↗
16. Luebke R.J., Chan K.C. (1985). Effect of microwave oven drying on surface hardness of dental gypsum products. J. Prosthet. Dent. 54(3):431–43510.1016/0022-3913(85)90566-9 ↗
17. Madler L., Kammler H.K., Mueller R., Pratsinis S.E. (2002a). Controlled synthesis of nanostructured particles by flame spray pyrolysis. J. Aerosol Sci. 33(2):369–38910.1016/S0021-8502(01)00159-8 ↗
18. Madler L., Stark W.J., Pratsinis S.E. (2002b). Flame-made ceria nanoparticles. J. Mater. Res. 17(6):1356–136210.1557/JMR.2002.0202 ↗
19. Melo L.G.N., Nagata M.J.H., Bosco A.F., Ribeiro L.L.G., Leite C.M. (2005). Bone healing in surgically created defects treated with either bioactive glass particles, a calcium sulfate barrier, or a combination of both materials. Clin. Oral Impl. Res. 16:683–69110.1111/j.1600-0501.2005.01090.x ↗
20. Meyers M.A., Mishra A., Benson D.J. (2006). Mechanical properties of nanocrystalline materials. Progr. Mater. Sci. 51(4):427–55610.1016/j.pmatsci.2005.08.003 ↗
21. Olsen D.W., 2004. Mineral Commodity Summaries. U.S. Geological Survey, pp. 76–77
22. Papageorgiou A., Tzouvalas G., Tsimas S. (2005). Use of inorganic setting retarders in cement industry. Cem. Concr. Res. 27:183–18910.1016/j.cemconcomp.2004.02.005 ↗
23. Peters C.P., Hines J.L., Bachus K.N., Craig M.A., Bloebaum R.D. (2005). Biological effects of calcium sulfate as bone graft substitute in ovine metaphyseal defects. J. Biomed. Mater. Res. A. 76A(3):456–46210.1002/jbm.a.30569 ↗
24. Rees G.D., Evans-Gowing R., Hammond S.J., Robinson B.H. (1999). Formation and morphology of calcium sulfate nanoparticles and nanowires in water-in-oil microemulsions. Langmuir 15(6):1993–200210.1021/la981026v ↗
25. Sandler S.I. (1999). Chemical and Engineering Thermodynamics. John Wiley & Sons, New York
26. Sievert T., Wolter W., Singh N.B. (2005). Hydration of anhydrite of gypsum (CaSO4.II) in a ball mill. Cem. Concr. Res. 35:623–63010.1016/j.cemconres.2004.02.010 ↗
27. Song X.Y., Sun S.X., Fan W.L., Yu H.Y. (2003). Preparation of different morphologies of calcium sulfate in organic media. J. Mater. Chem. 13(7):1817–182110.1039/b212735k ↗
28. Stark W.J., Baiker A., Pratsinis S.E. (2002). Nanoparticle opportunities: Pilot-scale flame synthesis of vanadia/titania catalysts. Part. Part. Syst. Char. 19(5):306–31110.1002/1521-4117(200211)19:5<306::AID-PPSC306>3.0.CO;2-6 ↗
29. Stark W.J., L. Mädler & S.E. Pratsinis, 2004. Metal oxides prepared by flame pyrolysis, WO2004/005184 2004
30. Stark W.J., Pratsinis S.E. (2002). Aerosol flame reactors for manufacture of nanoparticles. Powder Technol. 126(2):103–10810.1016/S0032-5910(02)00077-3 ↗
31. Stark W.J., Wegner K., Pratsinis S.E., Baiker A. (2001). Flame aerosol synthesis of vanadia–titania nanoparticles: Structural and catalytic properties in the selective catalytic reduction of NO by NH3. J. Catal. 197(1):182–19110.1006/jcat.2000.3073 ↗
32. Xu C.H. (2005). Research and application of ceramic die materials. Rare Metal Mater. Eng. 34:262–265
33. Zhan G.D., Mukherjee A.K. (2005). Processing and characterization of nanoceramic composites with interesting structural and functional properties. Rev. Adv. Mater. Sci. 10(3):185–196