The cylinder for the piston is honed on its internal diameter to produce a uniform gap around the piston. Finally a fill tube and cylinder head are thermally bonded to one open end of the cylinder. The four attachments are then thermally bonded to the main housing of the chamber. These bonds are accomplished under rigidly controlled conditions of heat and pressure and result in virtually no loss of optical properties or deformation of part geometry. After fine annealing, the final product is essentially a single piece of quartz.
Optical windows are then frit bonded to the remaining open sides of the chamber.
For more information, please do not hesitate to contact Precision Glass Products Company at our phone, fax, or e-mail sites. Our technicians are always available to discuss your requirements. NASA article featuring this product and the microgravity dendritic growth experiment. If you do not have the Acrobat viewer, click here to get it from the Adobe site.