研究煤矿堆积物的特性、烧制行为和在石器陶瓷中的潜在应用

IF 2.8 Q2 MINING & MINERAL PROCESSING Mining of Mineral Deposits Pub Date : 2023-12-30 DOI:10.33271/mining17.04.109
Totok Nugroho, Subari, B. D. Erlangga, Supriyadi, D. C. Birawidha, Arifin Siagian
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引用次数: 0

摘要

研究目的研究了一种陶瓷坯体的二元混合物,其中包含印度尼西亚东加里曼丹邦塘煤矿矿区的覆盖层。已对这种覆盖层材料进行了测试,以制造石质陶瓷体。研究方法覆盖层材料的初步特征描述包括通过 XRF 分析检测化学成分,以及通过 XRD 分析检测暴露在高温下的原材料和覆盖层的矿物含量。陶瓷试样的成分是 85% 的覆盖层材料和 15% 的细砂的混合物。陶瓷体试样的焙烧温度范围为 900-1100°C。然后分析陶瓷的特性,如物理颜色、可塑性、收缩率、吸水性和密度。研究结果结果表明,陶瓷试样在这一温度范围内受到高温时会发生致密化,进而导致低吸水性和高抗弯强度。这最终导致 1100°C 时的吸水率低于 1.0%,这对炻器类型的陶瓷是有利的。试样在 1000°C 时的机械性能符合炻器体标准。此外,由于低烧成温度足以达到炻器的规格要求,因此这种方法被认为更节能。独创性。二元粘土基陶瓷是利用煤矿堆积物和含铁量较高的河砂进行测试的。由于原料中含有碱氧化物和钙,因此有可能减少助熔剂的使用。对炻器的特性、烧成效果和应用进行了全面研究。实际意义。该成果中的一些陶瓷原型也是采用旋转技术制作的,并在此温度范围内加热。由于覆土一般被认为是回填材料,因此将粘土材料选择性地应用于陶瓷,可通过利用容易获得的覆土材料,为刺激本地产品创新提供潜力。
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Examining the properties, behaviour in firing and potential application of coal mine overburden for stoneware ceramics
Purpose. A binary mixture of a ceramic body was studied, incorporating overburden from a coal mine site in Bontang, East Kalimantan, Indonesia. This overburden material has been tested for the manufacture of stone-ceramic body. Methods. The initial characterization of overburden materials includes testing the chemical composition by XRF analysis and mineral content by XRD analysis on raw materials and overburden exposed to high temperature. The composition of ceramic specimens is a mixture of 85% overburden material and 15% fine sand. Firing temperatures in the range of 900-1100°C were applied to the ceramic body specimen. Then, ceramic properties, such as physical color, plasticity, shrinkage, water absorption and density were analyzed. Findings. The results show that the ceramic specimen experiences densification when exposed to high temperature in this range, which in turn contributes to low water absorption and high flexural strength. This ultimately results in low water absorption below 1.0% at 1100°C, which is favorable for stoneware type of ceramics. The mechanical properties of specimen at 1000°C is in accordance with stoneware body standard. In addition to this, it is believed to be more energy efficient, since the low firing temperature is sufficient to achieve the stoneware specification. Originality. The binary clay-based ceramic have been tested using coal mine overburden and river sand with a high Fe2O3 content. Together with the presence of alkali oxides and calcium in the raw materials, this can potentially reduce the use of fluxing agent. A comprehensive study has been conducted on the characteristics, firing effect and application of stoneware. Practical implications. Some ceramic prototypes from this result were also made using a rotary technique and heated in this temperature range. Since overburden is generally considered to be backfill material, the selective clay material application for ceramics can provide the potential to stimulate local product innovation by utilizing easily available overburden materials.
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来源期刊
Mining of Mineral Deposits
Mining of Mineral Deposits MINING & MINERAL PROCESSING-
CiteScore
5.20
自引率
15.80%
发文量
52
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