| Method of producing glass with alexandrite effect based on a low-melting matrix | |
| 2024-05-03 | |
| 专利权人 | SUPERHARD & NEW CARBON MATERIALS INST (SUPE-Non-standard) |
| 申请日期 | 2024-05-03 |
| 专利号 | RU2832942-C1 |
| 成果简介 | NOVELTY - Invention relates to production of coloured glass having an alexandrite effect based on a low-melting matrix, which can be used in making articles for jewellery and decorative and art purposes. Glass with alexandrite effect is obtained from a mixture of reagents of silicon, germanium, boron and calcium oxides, which form low-melting borosilicate glass, at a ratio of, wt.%: SiO2=25-35, GeO2=10-20, B2O3=35-45, CaO=10-20, and additionally two oxides of rare-earth elements, such as Pr and Nd, or Pr and Ho, or Nd and Ho, or Sm and Ho, taken in stoichiometric ratio of 1:1 in amount of 10% by weight of total glass components. Charge is heat treated at temperature of 800 °C, homogenisation, preparation of the melt by heating charge to 1,000-1,050 °C is held during a day in a platinum crucible, after which it is quickly cooled to room temperature by pouring the melt from the platinum crucible into a glass-graphite crucible. USE - Glass. ADVANTAGE - Obtaining glass with alexandrite effect. 1 cl, 1 ex, 3 dwg |
| IPC 分类号 | B44C-005/08 ; C03C-003/068 ; C03C-004/02 |
| 国家 | 俄罗斯 |
| 专业领域 | 材料科学 |
| 语种 | 英语 |
| 成果类型 | 专利 |
| 文献类型 | 科技成果 |
| 条目标识符 | http://119.78.100.226:8889/handle/3KE4DYBR/16884 |
| 专题 | 中国科学院新疆生态与地理研究所 |
| 作者单位 | SUPERHARD & NEW CARBON MATERIALS INST (SUPE-Non-standard) |
| 推荐引用方式 GB/T 7714 | SIMONOVA C A,KUZNETSOV A B,KONONOVA N G,et al. Method of producing glass with alexandrite effect based on a low-melting matrix. RU2832942-C1[P]. 2024. |
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