Flux Grown Sapphire Process

Ruby thin film was grown on sapphire substrate by evaporation method of moo3 flux.

Flux grown sapphire process. Manufacturers cut this melt material into large thick rectangular slices to make windows for helicopter gunships. Color change synthetic sapphire made to imitate alexandrite has been popular since the early 1900s. Flux grown pulled and hydrothermal synthetic sapphires can be very convincing substitutes for the natural gem. Chatham is proud to be the pioneer of lab grown gemstones and lab created diamonds.

Even the best sapphire crystal has different shades of blue in it. There are different methods of growing sapphires in a lab and of these the czochralski pulled growth and the flux method yield higher quality lab grown sapphires. These gemstones have the same physical chemical and optical properties as mined gemstones and diamonds have. Synthetic sapphire can be created in many ways one of which is called flux growth.

This creation was not so much to save power but to create stability. 3 to 40 ct and with 18 chatham flux grown blue sapphire crystal groups and single crystals rang ing in weight from 7 to 55 ct several hundred flux grown blue sapphire single crystals weigh ing from 1 to 2 ct each and 11 faceted flux grown blue sapphires weighing from 0 37 to 2 ct each. This 790 ct sapphire was cut from colorless corundum grown via the czochralski melt process in the 1970s immense lab grown sapphires were used for a variety of applications. Our flux furnaces are extremely efficient.

Each is about the size of a 50 gallon cylinder about 4 feet tall and 3 feet wide. We control the environment so that crystals can grow naturally. We don t make gems. At the center is a molten flux of chemicals at 1200 degrees celsius and 18 inches away on the outside it is less than 80 degrees fahrenheit.

The components of ruby al 2 o 3 cr 2 o 3 are dissolved in the solvent at 1200 to 1300 c in a platinurn crucible and on slow cooling the solubility of ruby is exceeded producing crystallization. During the flux growth process flux a substance that reduces the melting point of surrounding material is combined in a metal lined crucible with the elements that make up a specific gem mineral. This is what is must be grown in tightly controlled environments to produce sapphires. That s why lab grown blue sapphires come in three lovely shades of blue not just one.

The czochralski process is a melt growth method wherein nutrients are melted in a crucible. Flux grown ruby in this process a mixture of lead oxide and boron oxide is used as the solvent. Recreating the conditions in which ge.