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ADVANCED MATERIALS & PROCESSES •

MARCH 2014

17

Fig. 2 —

Schematic of the HMIAM

[13]

(top)

and light reflectance method

[11]

(bottom).

Fig. 3 —

Schematic of the liquid metal

cleanliness analyzer (LiMCA) technique

[14]

.

Vacuum

Gasket

Steel tube

Mg

Mg

Liquid

magnesium

Sample

Top of brightimeter

45°

Incident lenses

Collecting lenses

Filter

Lamp

Photocell

16 mm

3 mm

19 mm

Inclusions

in a filter

cake

Cement

Steel filter

Filter cup

Data display

Signal processing

Differential amplifier

Argon

Vacuum

Atmosphere

Insulating tube

Electrodes