معطيات السليكا و مساعدات الصهر الطبيعية بالسودان في التشكيل الفني للزجاج

Abstract EN

The purpose of this research is to investigate the operational characteristic for natural materials in Sudan for glass industry aiming to discover new suitable materials and also to providing information about their characteristics, manner of preparation, process of production and the possibility of utilizing them in artistic glass shapes.

The researcher selected 40 samples from different areas in Sudan ; they contains various resources of acidic oxides, alkaline and stabilizer.

The samples were examined by XRF (X-Ray Fluorescence).

Their components were observed impurities were spotted and then compared to the components of the international standard samples.

The researcher studied the mechanical characteristics of soil samples and physical characteristics of other samples which include general mass, physical structure, LOI, identifying color in accordance with the international standard, melting point and color of fuse.

The samples underwent various processes such as mechanical wash, filtration, sedimentation, magnetic separator and calcinations.

Then various mixtures have been made such as, non-crystallized mixtures, glaze and vitreous ware.

These mixtures have been made up in accordance with the international standard by using mixtures in various types of glass production.

Mixtures were then burned in different degree temperatures.

The number of mixtures experimented made were about eighty eight experiments.

Fifteen types of glass were produced using burning processes, and then its hardness and resistance to acid and cracking were measured.

The glass samples were transferred to powder and made into mixtures with the help of a binder material then formed into ceramic molds and others were formed into half of a cylinder shape then formed into ceramic molds and underwent heat-treatment to form artistic glass shapes.

Finally, it has been clearly shown that it is possible to use these samples in forming artistic glass shapes after treatment and subtracting of iron components.

It is also became clear that Grigriba and Zalingi soil could be used successfully as natural glaze after heating in suitable degrees without adding any other materials.