PRODUCTION OF PRODUCTION OF NANO MATERIALS:NANO MATERIALS:

BALL MILLING BALL MILLING METHODMETHOD

BY BY V.AISHWARYAV.AISHWARYA10311A190310311A1903

ECM D1ECM D1

INTRODUCTIONINTRODUCTION

Nano materials can be defined as Nano materials can be defined as those materials which have those materials which have structured components with size less structured components with size less than 100nm at least in one dimension.than 100nm at least in one dimension.

Nanotechnology is an advanced Nanotechnology is an advanced technology, which deals with the technology, which deals with the synthesis of nano-particles, synthesis of nano-particles, processing of the nano materials and processing of the nano materials and their applications.their applications.

BALL MILLINGBALL MILLING

Ball milling is a method of production Ball milling is a method of production of nano materials.of nano materials.

This process is used in producing This process is used in producing metallic and ceramic nano materials.metallic and ceramic nano materials.

These mills are equipped with grinding These mills are equipped with grinding media composed of wolfram carbide or media composed of wolfram carbide or steel.steel.

Ball mills rotate around a horizontal Ball mills rotate around a horizontal axis ,partially filled with the material to axis ,partially filled with the material to be ground plus the grinding medium.be ground plus the grinding medium.

The balls rotate with high energy The balls rotate with high energy inside a drum and then fall on the inside a drum and then fall on the solid with gravity force and crush solid with gravity force and crush the solid into nano crystallites.the solid into nano crystallites.

CONCLUSIONCONCLUSION

The significant advantage of this The significant advantage of this method is that it can be readily method is that it can be readily implemented commercially.implemented commercially.

Ball milling can be used to make Ball milling can be used to make carbon nanotubes and boron nitride carbon nanotubes and boron nitride nanotubes.nanotubes.

It is a preferred method for preparing It is a preferred method for preparing metal oxide nano crystals like metal oxide nano crystals like Cerium(CeO2) and Zinc Oxide (ZnO).Cerium(CeO2) and Zinc Oxide (ZnO).

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