New possibility for the use of plasma discharges to identify amber and changes in amber structure

• Autorzy: Gnapowski S. , Lenik K. , Szwed G. , Akiyama H.
• Języki publikacji: EN

Abstrakty

EN

Pulsed power discharge applied in air to the amber surface was found to cause improvement in its appearance and color changes such as to red, a color not natural to amber but attractive for jewelry. Needle and plate electrodes were used during experiments. Pulsed power discharges in air particularly turned amber red at the edges and around the needle electrode. Discharges in water did not change amber structure because discharge occurring on the surface does not cross the amber structure. Discharges in silicone oil had a different effect, with most discharge passing through the amber structure, causing fine cracks. Unfortunately, the absence of a consistent amber structure causes difficulty in selecting the correct discharge (shock wave) power. Using new technology, we have changed the appearance a very old material-amber (about 40 – 60 million years old) – to make it more attractive for customers; this technology is also useful for detecting artificial amber (costume jewellery) without causing damage to the product.

Słowa kluczowe

EN

amber; pulsed power plasma discharge; shock wave; cracks; silicone oil; red color amber

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2012
• Tom: Vol. 6, nr 16
• Strony: 1--6
• Opis fizyczny: Bibliogr. 3 poz., fig.

Twórcy

autor

Gnapowski S.

• Graduate School of Science and Technology, Frontier Technology for Electrical Energy, Kumamoto University, 2-39-1 Kurokami, Kumamoto, 860-8555, Japan.

autor

Lenik K.

• Fundamentals of Technology Faculty, Lublin University of Technology, ul. Nadbystrzycka 38, 20-618 Lublin, Poland

autor

Szwed G.

• Fundamentals of Technology Faculty, Lublin University of Technology, ul. Nadbystrzycka 38, 20-618 Lublin, Poland

autor

Akiyama H.

• Graduate School of Science and Technology, Frontier Technology for Electrical Energy, Kumamoto University, 2-39-1 Kurokami, Kumamoto, 860-8555, Japan.

Bibliografia

• 1. Bilingual Newsletter of The International Amber Association. Bursztynisko, no. 33, 2011, pp. 1-44.
• 2. Buddhue, J.D. Some new carbon minerals kansasite described. The Mineralogist, 6(1), 7-8, 1938, pp. 20-21.
• 3. The Treasures of Gdańsk Amber. City Promotion Department, Gdańsk, Poland, 2010 pp. 15-28.