The reasonable shape of preform and distribution law of field variables in forming process could be obtained by equipotential field method compared to the existent electrostatic field method.
A holey fiber preform structure was made by using tube-in-tube method and was drawn at high speeds with an aim of mass production to meet the demand of next generation communication systems.
用“筒中筒”方法高速拉制了有孔光纤预制样品，目标是符合下一代通信系统的量产需求。
3
The flow front of ZL109 melt in mullite chopped fibre preform during melt infiltration was investigated with a method called stopping squeeze casting.