Ultra clean products

PHP is using ultrasonic inspection on 100% of its production and 100% of the volume of ingots. This is the optimal method in order to organize feedback to process.
Results are cleaner products and the emergeance of the new generation GIGALLOYS.
GIGALLOYS are produced using patented processes : FR2744805, US5955673, US5887481, Taiwan 105486. Pending patents in Japan : 115242/96 and 9-529039

Rejected ingot (with some indications above FBH 0.7 mm)

Example of a rejected ingot
High level of ultrasonic indications
= High level of arcing during sputtering


	GIGALLOYS 97 Quality (no indication above FBH 0.5 mm) Ultrasonic inspection of adjacent slices is the best way to characterize the internal cleanliness of material at the 50 ľm scale

Ultra clean Al 0,5% Cu PHP alloy (GIGALLOYS 97)
Low level of ultrasonic indications
= No arcing

For many different applications in the high purity field, PHP must guarantee that material is "defect free". This is especially important when trying to improve the yield of sputtered products which is directly related to defects within the raw material.
Pechiney High Purity has greatly improved its elaboration and casting processes in order to deliver cleaner products to the targets manufacturers.