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Crystal growth, structure and thermal properties of noncentrosymmetric single crystals PrCa4O(BO3)3+

Journal Article


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Abstract


  • Noncentrosymmetric praseodymium calcium oxyborate single crystals, PrCa4O(BO3)3 (PrCOB), were grown by the Czochralski technique. The monoclinic unit cell parameters were found to be a = 8.177 Å, b = 16.157 Å, c = 3.629 Å and Z = 2 with space group Cm. Crystal density was measured using the Archimedes method, being on the order of 3.47 g cm-3. Thermal properties of PrCOB were investigated, where the specific heat was found to be 0.63 J g-1 °C-1 at room temperature, increasing to 0.85 J g-1°C-1 at 700°C. The thermal expansion coefficients were measured to be α11 = 7.99, α22 = 4.90 and α33 = 9.46 (10-6/°C), respectively. In addition, thermal diffusivity λ22 and thermal conductivity κ22 as a function of temperature were studied, where λ22 was observed to decrease from 0.89 to 0.58 mm2 s-1, while κ22 was found to maintain the same value, being ∼1.90 W m-1°C-1 over the temperature range of 20-700°C. © 2013 The Royal Society of Chemistry.

UOW Authors


  •   Yu, Fapeng (external author)
  •   Zhang, Shujun
  •   Cheng, Xiufeng (external author)
  •   Duan, Xiulan (external author)
  •   Ma, Tingfeng (external author)
  •   Zhao, Xian (external author)

Publication Date


  • 2013

Citation


  • Yu, F., Zhang, S., Cheng, X., Duan, X., Ma, T. & Zhao, X. (2013). Crystal growth, structure and thermal properties of noncentrosymmetric single crystals PrCa4O(BO3)3+. CrystEngComm, 15 (26), 5226-5231.

Scopus Eid


  • 2-s2.0-84880525392

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2938&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1936

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 5226

End Page


  • 5231

Volume


  • 15

Issue


  • 26

Place Of Publication


  • United Kingdom

Abstract


  • Noncentrosymmetric praseodymium calcium oxyborate single crystals, PrCa4O(BO3)3 (PrCOB), were grown by the Czochralski technique. The monoclinic unit cell parameters were found to be a = 8.177 Å, b = 16.157 Å, c = 3.629 Å and Z = 2 with space group Cm. Crystal density was measured using the Archimedes method, being on the order of 3.47 g cm-3. Thermal properties of PrCOB were investigated, where the specific heat was found to be 0.63 J g-1 °C-1 at room temperature, increasing to 0.85 J g-1°C-1 at 700°C. The thermal expansion coefficients were measured to be α11 = 7.99, α22 = 4.90 and α33 = 9.46 (10-6/°C), respectively. In addition, thermal diffusivity λ22 and thermal conductivity κ22 as a function of temperature were studied, where λ22 was observed to decrease from 0.89 to 0.58 mm2 s-1, while κ22 was found to maintain the same value, being ∼1.90 W m-1°C-1 over the temperature range of 20-700°C. © 2013 The Royal Society of Chemistry.

UOW Authors


  •   Yu, Fapeng (external author)
  •   Zhang, Shujun
  •   Cheng, Xiufeng (external author)
  •   Duan, Xiulan (external author)
  •   Ma, Tingfeng (external author)
  •   Zhao, Xian (external author)

Publication Date


  • 2013

Citation


  • Yu, F., Zhang, S., Cheng, X., Duan, X., Ma, T. & Zhao, X. (2013). Crystal growth, structure and thermal properties of noncentrosymmetric single crystals PrCa4O(BO3)3+. CrystEngComm, 15 (26), 5226-5231.

Scopus Eid


  • 2-s2.0-84880525392

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2938&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1936

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 5226

End Page


  • 5231

Volume


  • 15

Issue


  • 26

Place Of Publication


  • United Kingdom