New research has developed an incredibly powerful X-ray system that could directly show microstructures in 3D prints as they are made.
x-rays
NIST Identifies Method Of Measuring Metal 3D Printing Stress
The US NIST has developed a technique for measuring mechanical stress in 3D printed metal parts that could change how 3D printing is done.
X-Ray 3D Printing!
Researchers have developed a method for 3D printing microstructures using X-rays.