GB/T 36595-2018Nanoscale barium titanate (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

Introduction

Barium titanate is an important basic material in the field of electronic ceramics. Due to its high dielectric constant, good ferroelectric, piezoelectric and withstand voltage.

And insulation and other properties, is widely used in the production of multilayer ceramic capacitors, thermistors, piezoelectric ceramics and other components, and these components in the pass Letters, IT, digital home appliances, automotive electronics, national defense and other fields are indispensable.

In recent years, components such as multilayer ceramic capacitors have been developed in the direction of thinner layering, miniaturization, large capacity, and high reliability.

Higher requirements for nano-barium titanate materials, one of the key materials, such as the purity, particle size and particle size distribution, ratio of nano-barium titanate Surface area, enthalpy and titanium molar ratio and other indicators. China began to explore the large-scale preparation technology of nano-barium titanate from the beginning of the 21st century and successfully realized production.

Industrialization, as of 2017, China's nano-barium titanate has occupied a third of the international high-end market, and has a foothold in the international arena. Light and heavy status.

This standard is very important for promoting the accurate characterization and evaluation of nano-barium titanate in the upstream and downstream of the industry and promoting its promotion and application. effect.

1 Scope

This standard specifies the product code, technical requirements, test methods, inspection rules, signs, labels, and packaging and transportation of nano-barium titanate. With storage.

This standard applies to nano-barium titanate powder materials. This product is mainly used in multilayer ceramic capacitor (MLCC) media, electronically conductive Slurry additives, fillers for high dielectric constant organic composite materials, and the like.

Molecular formula. BaTiO3 Relative molecular mass. 233.20 (according to 2007 international relative atomic mass)

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 191-2008 packaging storage and transportation icon

GB/T 6284-2006 General method for moisture determination in chemical products - Dry reduction method

GB/T 6679 Solid Chemical Products Sampling General

GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values

GB/T 15445.1 Expression of particle size analysis results Part 1. Graphical characterization

Determination of specific surface area of solid materials by GB/T 19587 gas adsorption BET method

GB/T 19619 nanomaterial terminology

GB/T 30904 inorganic chemical products crystal structure analysis X-ray diffraction method

EJ/T 553 Determination of mineral unit cell parameters by powder X-ray diffraction

HG/T 3587-2009 High-purity barium titanate for the electronics industry

3 Terms and definitions

The following terms and definitions as defined in GB/T 19619 apply to this document.

4 Product Code