Cargando…

Preparation and Basic Properties of Praseodymium-Neodymium-Chromium Containing Imitation Gemstone Glass

Imitation gemstone glass has numerous characteristics, including low cost, rich colour, stable colouring, and the formation of colour-changing effects that can meet the jewellery market demand for beautiful gemstones of middle and low grades. In this study, four types of gem-imitating glass were pre...

Descripción completa

Detalles Bibliográficos
Autores principales: Zhang, Siqi, Li, Keqing, Pu, Junyuan, Ni, Wen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9611999/
https://www.ncbi.nlm.nih.gov/pubmed/36295409
http://dx.doi.org/10.3390/ma15207341
_version_ 1784819667970293760
author Zhang, Siqi
Li, Keqing
Pu, Junyuan
Ni, Wen
author_facet Zhang, Siqi
Li, Keqing
Pu, Junyuan
Ni, Wen
author_sort Zhang, Siqi
collection PubMed
description Imitation gemstone glass has numerous characteristics, including low cost, rich colour, stable colouring, and the formation of colour-changing effects that can meet the jewellery market demand for beautiful gemstones of middle and low grades. In this study, four types of gem-imitating glass were prepared by the elemental substitution of praseodymium, neodymium and chromium elements based on rare earth glass and examined by combining refractive index, density, spectral characteristics and colour parameters. Sample 1 contained only Pr(6)O(11) and showed a golden-yellow colour like chrysoberyl. Sample 2 contained only Nd(2)O(3) and showed a blue-purple colour like amethyst. Sample 3 contained Pr(6)O(11) and Nd(2)O(3) and appeared green under D65 light source and red under A light source, with a colour-change effect like alexandrite. Sample 4 contained Pr(6)O(11), Nd(2)O(3) and Cr(2)O(3) and showed a highly saturated green colour like emerald because of the strong colouring effect of Cr(3+) in the glass. The findings revealed that all four samples are transparent, with a refractive index greater than 1.5 and a density higher than 2.6 g/cm(3). The comprehensive performance of the four imitation gemstone glasses can be found in the corresponding natural gemstones, which has a certain practical value.
format Online
Article
Text
id pubmed-9611999
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-96119992022-10-28 Preparation and Basic Properties of Praseodymium-Neodymium-Chromium Containing Imitation Gemstone Glass Zhang, Siqi Li, Keqing Pu, Junyuan Ni, Wen Materials (Basel) Article Imitation gemstone glass has numerous characteristics, including low cost, rich colour, stable colouring, and the formation of colour-changing effects that can meet the jewellery market demand for beautiful gemstones of middle and low grades. In this study, four types of gem-imitating glass were prepared by the elemental substitution of praseodymium, neodymium and chromium elements based on rare earth glass and examined by combining refractive index, density, spectral characteristics and colour parameters. Sample 1 contained only Pr(6)O(11) and showed a golden-yellow colour like chrysoberyl. Sample 2 contained only Nd(2)O(3) and showed a blue-purple colour like amethyst. Sample 3 contained Pr(6)O(11) and Nd(2)O(3) and appeared green under D65 light source and red under A light source, with a colour-change effect like alexandrite. Sample 4 contained Pr(6)O(11), Nd(2)O(3) and Cr(2)O(3) and showed a highly saturated green colour like emerald because of the strong colouring effect of Cr(3+) in the glass. The findings revealed that all four samples are transparent, with a refractive index greater than 1.5 and a density higher than 2.6 g/cm(3). The comprehensive performance of the four imitation gemstone glasses can be found in the corresponding natural gemstones, which has a certain practical value. MDPI 2022-10-20 /pmc/articles/PMC9611999/ /pubmed/36295409 http://dx.doi.org/10.3390/ma15207341 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Siqi
Li, Keqing
Pu, Junyuan
Ni, Wen
Preparation and Basic Properties of Praseodymium-Neodymium-Chromium Containing Imitation Gemstone Glass
title Preparation and Basic Properties of Praseodymium-Neodymium-Chromium Containing Imitation Gemstone Glass
title_full Preparation and Basic Properties of Praseodymium-Neodymium-Chromium Containing Imitation Gemstone Glass
title_fullStr Preparation and Basic Properties of Praseodymium-Neodymium-Chromium Containing Imitation Gemstone Glass
title_full_unstemmed Preparation and Basic Properties of Praseodymium-Neodymium-Chromium Containing Imitation Gemstone Glass
title_short Preparation and Basic Properties of Praseodymium-Neodymium-Chromium Containing Imitation Gemstone Glass
title_sort preparation and basic properties of praseodymium-neodymium-chromium containing imitation gemstone glass
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9611999/
https://www.ncbi.nlm.nih.gov/pubmed/36295409
http://dx.doi.org/10.3390/ma15207341
work_keys_str_mv AT zhangsiqi preparationandbasicpropertiesofpraseodymiumneodymiumchromiumcontainingimitationgemstoneglass
AT likeqing preparationandbasicpropertiesofpraseodymiumneodymiumchromiumcontainingimitationgemstoneglass
AT pujunyuan preparationandbasicpropertiesofpraseodymiumneodymiumchromiumcontainingimitationgemstoneglass
AT niwen preparationandbasicpropertiesofpraseodymiumneodymiumchromiumcontainingimitationgemstoneglass