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Updated: Jul 12, 2026
04:41
Optimized Sealing Process and Real-Time Monitoring of Glass-to-Metal Seal Structures
Published on: September 2, 2019
Summary
A new nondestructive method uses hydrated glass layer thickness to date man-made glass. This technique, employing (15)N nuclear resonance depth profiling, establishes a qualitative age scale for 19th- and 20th-century American glass objects.
Area of Science:
- Materials Science
- Archaeometry
- Analytical Chemistry
Background:
- Authenticating and dating man-made glass is crucial for historical and archaeological studies.
- Existing methods for glass dating can be destructive or lack precision.
- Understanding glass surface alteration is key to developing new dating techniques.
Purpose of the Study:
- To introduce and evaluate a novel nondestructive method for dating and authenticating man-made glass.
- To explore the relationship between glass age and surface hydration layer thickness.
- To establish a preliminary age scale for specific types of historical glass.
Main Methods:
- Utilizing the (15)N nuclear resonance depth profiling technique to measure the thickness of the hydrated surface layer on glass.
- Analyzing the correlation between measured hydration layer thickness and the known age of glass samples.
- Developing a qualitative age scale based on hydration layer thickness for 19th- and 20th-century American glass.
Main Results:
- Demonstrated a measurable relationship between the age of glass objects and the thickness of their hydrated surface layers.
- Successfully applied (15)N nuclear resonance depth profiling for nondestructive analysis of glass surfaces.
- Established a qualitative age scale for common 19th- and 20th-century American glass, showing potential for dating applications.
Conclusions:
- The proposed nondestructive method shows significant potential for dating and authenticating man-made glass.
- Hydration layer thickness, measured by (15)N nuclear resonance depth profiling, serves as a reliable indicator of glass age.
- This technique offers a valuable new tool for researchers in materials science, archaeology, and art history.
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