22.05.2018. Use of porcelain for submersible vehicles
Lightweight but at the same time heavy-duty materials for providing deepwater vehicles with zero buoyancy is a crucial factor for commercial seabed mining. Engineers of Krypton Ocean Group have successfully tested such type of material. Hollow porcelain balls having dia 50-100 mm with 3-5 mm wall thickness were made of a special “slip” (the liquified porcelain paste). The balls were baked at the temperature of 1400 degrees that provided them with a special strength. As is well known, porcelain can withstand up to 200 MPa pressure at a uniformly distributed load. However, porcelain is fragile when being subjected to impact. That’s why the hollow balls are filled with special resins preventing the balls from destruction. After that, the balls can meet their deepwater mission.