Environmental degradation of Modern non-balanced glasses
Crizzling is an alteration pathology related to non-balanced glasses (high content of flux oxides and low content of stabilizer ones), which can produce an intense damage such as transparency losses, appearance of drops on the surface or cracking. In this study two case studies (outdoor and indoor e...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Grupo Español del IIC
2020-06-01
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| Series: | Ge-conservación |
| Subjects: | |
| Online Access: | https://ge-iic.com/ojs/index.php/revista/article/view/690/957 |
| _version_ | 1811282275628744704 |
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| author | Teresa Palomar Alexandra Rodrigues |
| author_facet | Teresa Palomar Alexandra Rodrigues |
| author_sort | Teresa Palomar |
| collection | DOAJ |
| description | Crizzling is an alteration pathology related to non-balanced glasses (high content of flux oxides and low content of stabilizer ones), which can produce an intense damage such as transparency losses, appearance of drops on the surface or cracking. In this study two case studies (outdoor and indoor environment) were presented. The main alteration agent for these glasses was the water (rain, condensation and environmental humidity). In the outdoor environment, the rain washed away the [OH−] ions formed during the alteration; however, the exposure to cyclic conditions accelerated its alteration rate. In the indoor environment, early stages revealed to consist of an alkali leaching that concentrates on the surface, on specific areas, that were related to water adsorption and consistent with the weeping phenomenon. Cracking and flaking of the surface represents a later stage, occurring specifically in unbalanced compositions. |
| first_indexed | 2024-04-13T01:48:32Z |
| format | Article |
| id | doaj.art-8742465648c849bb9a4bc51c6abe68ff |
| institution | Directory Open Access Journal |
| issn | 1989-8568 |
| language | English |
| last_indexed | 2024-04-13T01:48:32Z |
| publishDate | 2020-06-01 |
| publisher | Grupo Español del IIC |
| record_format | Article |
| series | Ge-conservación |
| spelling | doaj.art-8742465648c849bb9a4bc51c6abe68ff2022-12-22T03:07:56ZengGrupo Español del IICGe-conservación1989-85682020-06-0117226232https://doi.org/10.37558/gec.v17i1.690Environmental degradation of Modern non-balanced glassesTeresa Palomar0https://orcid.org/0000-0002-3762-8788Alexandra Rodrigues1https://orcid.org/0000-0002-4688-7159Instituto de Cerámica y Vidrio (CSIC)Unidade de investigação VICARTE “Vidro e Cerâmica para as Artes”, Universidade Nova de Lisboa, Campus de Caparica, FCT-UNLCrizzling is an alteration pathology related to non-balanced glasses (high content of flux oxides and low content of stabilizer ones), which can produce an intense damage such as transparency losses, appearance of drops on the surface or cracking. In this study two case studies (outdoor and indoor environment) were presented. The main alteration agent for these glasses was the water (rain, condensation and environmental humidity). In the outdoor environment, the rain washed away the [OH−] ions formed during the alteration; however, the exposure to cyclic conditions accelerated its alteration rate. In the indoor environment, early stages revealed to consist of an alkali leaching that concentrates on the surface, on specific areas, that were related to water adsorption and consistent with the weeping phenomenon. Cracking and flaking of the surface represents a later stage, occurring specifically in unbalanced compositions.https://ge-iic.com/ojs/index.php/revista/article/view/690/957glasscrizzlingnatural environmentdegradation mechanism |
| spellingShingle | Teresa Palomar Alexandra Rodrigues Environmental degradation of Modern non-balanced glasses Ge-conservación glass crizzling natural environment degradation mechanism |
| title | Environmental degradation of Modern non-balanced glasses |
| title_full | Environmental degradation of Modern non-balanced glasses |
| title_fullStr | Environmental degradation of Modern non-balanced glasses |
| title_full_unstemmed | Environmental degradation of Modern non-balanced glasses |
| title_short | Environmental degradation of Modern non-balanced glasses |
| title_sort | environmental degradation of modern non balanced glasses |
| topic | glass crizzling natural environment degradation mechanism |
| url | https://ge-iic.com/ojs/index.php/revista/article/view/690/957 |
| work_keys_str_mv | AT teresapalomar environmentaldegradationofmodernnonbalancedglasses AT alexandrarodrigues environmentaldegradationofmodernnonbalancedglasses |