A researcher who made color history in 2009 with a vivid blue pigment has developed durable, reddish magentas inspired by lunar mineralogy and ancient Egyptian chemistry.
An Oregon State University researcher who made color history in 2009 with a vivid blue pigment has developed durable, reddish magentas inspired by lunar mineralogy and ancient Egyptian chemistry.
"To date, no earth-based mineral has been reported to contain chromium in the divalent state as one of the components," said Subramanian, the Milton Harris Professor of Materials Science in the OSU College of Science."However, the analysis of lunar mineral samples collected from Apollo missions showed the occurrence of chromium in the divalent state."
One of their samples turned out to be a brilliant blue, named YInMn blue after the component elements yttrium, indium and manganese. It was the first blue pigment discovery in two centuries and a huge advance in safety and durability as well as vividness. "Most of the magenta-colored pigments used today are organic chemicals and suffer from stability issues when exposed to ultraviolet rays and heat from the sun because they can break down organic chemical bonds," Subramanian said."Inorganic magenta pigments are rare, and most require a significant amount of cobalt salts that are hazardous to both humans and the environment."
"Most pigments are discovered by chance," Subramanian said."The reason is because the origin of the color of a material depends not only on the chemical composition but also on the intricate arrangement of atoms in the crystal structure. So someone has to make the material first in a laboratory, then study its crystal structure thoroughly to explain the color."
Materials Science Engineering And Construction Inorganic Chemistry Organic Chemistry Thermodynamics Civil Engineering Graphene
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