LED photoluminescence granulation

LED photoluminescence granulation

Freeze Granulation is today used for commercial production of homogeneous granules for the production of oxides used as a ceramic phosphor plate for white illumination in LED Lighting. By using Freeze Granulation of the powder and binder mixture, compared with spray drying, it is possible to manufacture a homogeneous phosphor plate with optimal properties for to generate a soft and warm white light from high power LEDs.

Please contact us for more information and a test-granulation of your powder system.

LED photoluminescence granulation

LED photoluminescence granulation

Pressing of powders

Pressing is the dominating shaping technique for ceramics and powder metals. Submicron and/or composite powders require adequate preparation to achieve a pressing performance that ensures dense compaction into a homogeneous state.

Conventional powder granulation methods (spray drying, sieve granulation etc) show drawbacks. Migration phenomena cause inhomogeneities and hard granules that do not disintegrate properly during pressing.

The preparation of a powder suspension by applying colloidal processing combined with sufficient mechanical treatment provides optimal homogeneity

  • can be preserved by spray freezing and subsequent freeze drying resulting in

Homogeneous powder granules with superior performance made by Freeze Granulation.

LED photoluminescence granulation

Freeze Granulation is today used for commercial production of homogeneous granules for the production of oxides used as a ceramic phosphor plate for white illumination in LED Lighting. By using Freeze Granulation of the powder and binder mixture, compared with spray drying, it is possible to manufacture a homogeneous phosphor plate with optimal properties for to generate a soft and warm white light from high power LEDs.