Investigation of the Usability of Lanthanide Element Doped Long-lasting CaAl2O4 Phosphorescent Pigment as a Traffic Road Marking Line
Öz
Road lines are those drawn on the veneer with
the purpose of driving the vehicles regularly and safely. In addition, parking
spaces are intended to mark the places where vehicles will be left, to ensure
safe passage of traffic, and to warn drivers against upcoming
threats.Alkali-earth aluminates are excellent structures for continuous
radiation, especially when doped with rare earth or transition metal ions.
Phosphors of CaAl2O4: Eu, Nd continue to be emit
phosphorscence light in the dark for a long time after being stimulated by
sunlight or artificial light. It is generally believed that the phosphorscence
of Eu2+ is due to the 4f to 5d transition. The doped CaAl2O4
: Eu, Nd phosphors were prepared at 550 °C using urea, an organic fuel.
Crystal structures of the phosphors were investigated using X-ray diffraction
(XRD) and morphology was determined by scanning electron microscope (SEM). The use of these phosphors, which emit in the
dark during the night, was investigated in the ways that are difficult to see
at night.
Anahtar Kelimeler
Kaynakça
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- 2. Yesilay Kaya, S., Karasu, B., Kaya, G. and Karacaoglu, E., 2010. Influences of Eu3+ and Dy3+ Contents on the Properties of Long Afterglow Strontium Aluminate Phosphors, Advances in Science and Technology 62, 88-94.
- 3. Yesilay Kaya, S., Karasu, B., 2012. Glass and Ceramics with Phosphorescent Ability, Ceramics Technical 34, 94-99.
- 4. Zhao, C., Chen, D., 2007. Synthesis of CaAl2O4:Eu,Nd Long Persistent Phosphor by Combustion Processes and its Optical Properties, Materials Letters, 61, 3673–3675.
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- 6. Luitel H.N., Preparation and Properties of Long Persistent Sr4Al14O25 Phosphors Activated by Rare Earth Metal Ions March 2010. Department of Energy and Materials Science Graduate School of Science and Engineering, Saga University, 145.
- 7. Yesilay Kaya, S., Karasu, B., Kaya, G., Karacaoglu, E., 2010. Effects of Firing Temperature and Time on the Luminescency of Phosphors in Strontium Aluminate System Co-doped by Eu2O3 and Dy2O3 and Prepared by Solid State Reaction Processing, Advances in Science and Technology 62, 82-87.
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Ayrıntılar
Birincil Dil
Türkçe
Konular
-
Bölüm
Araştırma Makalesi
Yazarlar
Yusuf Ziya Halefoğlu
*
ÇUKUROVA ÜNİVERSİTESİ, GÜZEL SANATLAR FAKÜLTESİ, SERAMİK BÖLÜMÜ
Yayımlanma Tarihi
15 Aralık 2017
Gönderilme Tarihi
1 Haziran 2017
Kabul Tarihi
19 Aralık 2017
Yayımlandığı Sayı
Yıl 2017 Cilt: 32 Sayı: 4