Figure 7
(A) Sketch showing the principal components of the helium-filled gas gun connected to a vacuum chamber utilized in this study; (B) front view of the specimen clamping fixture with an open window of 2 in by 2 in; and (C) exploded view of the specimen clamping fixture comprising of different components: (1) base plate, (2) rubber seals, (3) test specimen, (4) face support, and (5) mechanical clamps.
