CN107417110A - 一种玉质冰裂纹釉瓷器的制备方法 - Google Patents

一种玉质冰裂纹釉瓷器的制备方法 Download PDF

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CN107417110A
CN107417110A CN201710423769.8A CN201710423769A CN107417110A CN 107417110 A CN107417110 A CN 107417110A CN 201710423769 A CN201710423769 A CN 201710423769A CN 107417110 A CN107417110 A CN 107417110A
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Abstract

一种玉质冰裂纹釉瓷器的制备方法,制作瓷器的素坯,在素坯表面施加0.8~2mm的釉料,制得坯体,将坯体进行烧制,制得瓷器。其中,釉料中各原料加入量的重量份依次为:钙长石70~80份、碳酸钡15~20份、氧化锌0~0.5份、氧化锆0~0.5份、硅灰石5~10份、氧化硼10~15份、氧化钕20~30份、白云母0~1份和钛英石5~10份。本发明中,釉层的膨胀系数大于素坯的热膨胀系数,在烧制过程中,由于二者膨胀系数不一致,导致瓷器产生张应力,使釉层开裂,产生裂纹;同时,在釉层能够生产硅酸钕晶体,使冰裂纹中呈现细小的晶花,提高其观赏性。

Description

一种玉质冰裂纹釉瓷器的制备方法
技术领域
本发明涉及陶瓷技术领域,具体涉及一种玉质冰裂纹釉瓷器的制备方法。
背景技术
钧瓷作为我国宋朝时期的五大名瓷之一,始于唐朝,盛于宋朝。钧瓷以窑变韦神,有入窑一色,出窑万彩;千钧万变,意境无穷的说法,其窑变艺术魅力位居诸窑之冠,且有钧瓷无对之说。钧瓷的独特之处包含了其独特的釉色,现在很多的瓷系都讲究玉质感,而且,玉质感已经成为瓷器把玩中一个非常热衷的系列。
冰裂纹,体现在陶瓷上是一种形似冰裂的纹,有的呈重叠状,有的呈网状。钧瓷片纹的明显程度与其釉色的变化和釉的乳浊度有关,一般乳浊度高的釉没有透明性好的釉片纹明显,但现有的冰裂纹瓷器的玻璃质感太强,而玉质感不足。为此,本发明的目的是提高一种乳浊度高、具有玉质感的冰裂纹釉瓷器。
发明内容
本发明的目的是提供一种玉质冰裂纹釉瓷器的制备方法。
本发明为实现上述目的所采用的技术方案为:一种玉质冰裂纹釉瓷器的制备方法,包括以下步骤:
(1)、制作瓷器的素坯,在素坯表面施加0.8~2mm的釉料,制得坯体;其中,釉料中各原料加入量的重量份依次为:钙长石70~80份、碳酸钡15~20份、氧化锌0~0.5份、氧化锆0~0.5份、硅灰石5~10份、氧化硼10~15份、氧化钕20~30份、白云母0~1份和钛英石5~10份;
(2)、将步骤(1)制得的坯体至于炉内进行预烧,然后在炉内氧化气氛下,在3~4.5h内均匀加热至炉内温度升温至850~900℃,再在0.8~1h内均匀加热至炉内温度升温至950~980℃,保温80~100min;
(3)、然后在炉内还原气氛下,在3.5~5h内均匀加热至炉内温度升温至1200℃,保温2~3h:再在1~1.5h内均匀加热至炉内温度升温至1270~1280℃,保温60~100min后,停火,自然冷却至室温,即制得玉质冰裂纹釉瓷器。
本发明中,步骤(1)采用石英、长石、滑石、磷酸钠、碳酸钡、草木灰、高岭土和锂辉石作为素坯的原料,各原料加入量的重量份数依次为:石英6~8份、长石8~10份、滑石1~2份、磷酸钠40~50份、碳酸钡5~6份、草木灰3~5份、高岭土22~30份、锂辉石6~8份;制备素坯的方法为:将素坯的原料粉碎后,按照所述原料的重量份进行混合后球磨至料浆过300目筛,料浆静置分层后,调节料浆中的含水量为45~55%,备用;将料浆注入预先制好的模具中,待坯体成型后,晾干并修整,并在750~800℃下烧制4~6h,随炉自然冷却,即制得素坯。
本发明中,步骤(2)预烧的工艺为:在炉内温度为室温的情况下,在2.5~3.5h内均匀加热至炉内温度升温至500~550℃,使坯体的含水量低于0.5%,瓷坯体内的水分充分蒸发,瓷坯体固化不易开裂。本发明中,步骤(2)使坯体缓慢的氧化,最大限度减少成瓷后的氧化气泡形成。
有益效果:本发明中,钙长石含量远大于碳酸钡的含量,且烧成温度逐渐提高,釉色光泽柔和,不刺眼,气泡不致变大,从而获得有如美玉一样的釉层。在钙-碱釉助熔体系中,釉料具有较低的共熔点,釉层能呈现出理想的釉色及玉质感。
本发明中,步骤(2)和(3)的烧成制度,使晶体的结构趋于完整,可得到玉质感效果好,釉面光滑细腻似羊脂的瓷器。本发明施加的釉厚在0.8~2mm时,釉面呈半透光、半乳浊的玉质效果;裂纹效果明显,分布均匀,裂纹大小合适。
本发明中,釉层的膨胀系数大于素坯的热膨胀系数,在烧制过程中,由于二者膨胀系数不一致,导致瓷器产生张应力,使釉层开裂,产生裂纹;同时,在釉层能够生产硅酸钕晶体,使冰裂纹中呈现细小的晶花,提高其观赏性。
本发明中,高含量的氧化硼增加釉的膨胀系数,容易产生釉裂;硅灰石能够与素坯中的锂辉石结合,在素坯与釉层之间产生中间层,使素坯、中间层与釉层三种的膨胀系数不同,提高冰裂效果。
本发明在氧化气氛下,炉内温度升温至950~980℃,该温度并未达到釉料全部熔融的温度,使于素坯结合的釉层性能玉石般的深厚光泽,在后续的还原气氛下,使素坯外层的釉层充分熔融,使瓷器表面具有光亮的釉层。
具体实施方式
为使本发明实现的技术手段、创作特征以及达成的目的便于理解,下面结合具体实施例进一步阐述本发明,但本发明所要求保护的范围并不局限于具体实施方式中所描述的范围。
一种玉质冰裂纹釉瓷器的制备方法,包括以下步骤:
(1)、制作瓷器的素坯,在素坯表面施加0.8~2mm的釉料,制得坯体;其中,釉料中各原料加入量的重量份依次为:钙长石70~80份、碳酸钡15~20份、氧化锌0~0.5份、氧化锆0~0.5份、硅灰石5~10份、氧化硼10~15份、氧化钕20~30份、白云母0~1份和钛英石5~10份;
(2)、将步骤(1)制得的坯体至于炉内进行预烧,然后在炉内氧化气氛下,在3~4.5h内均匀加热至炉内温度升温至850~900℃,再在0.8~1h内均匀加热至炉内温度升温至950~980℃,保温80~100min;
(3)、然后在炉内还原气氛下,在3.5~5h内均匀加热至炉内温度升温至1200℃,保温2~3h:再在1~1.5h内均匀加热至炉内温度升温至1270~1280℃,保温60~100min后,停火,自然冷却至室温,即制得玉质冰裂纹釉瓷器。
当烧成温度在1270~1280℃时,釉中残存一定数量的未融石英会形成大量的钙长石析晶,由于这些小气泡,石英颗粒和长石析晶进入釉层形成光线散射,从而使釉层变得乳浊而不透明,在经过热胀冷缩反应,釉层就成鱼鳞状叠层开裂。
本发明的釉层中含有钙,可以促进分相,并且对分相尺寸有一定的影响,可以使其粒度介于 60~100nm,同时,釉层会有部分析晶或者残留的石英,同样可以生成分相,由于表面张力的存在,分相可呈圆形,形成分相小液滴,能够在不使用陶瓷色料的前提下得到很好的釉色,并且,利用分相得到的釉色比色料稳定,不会出现脱落现象。
本发明釉料中含有5~10份钛英石,含量较低,在提高釉层质感的同时,避免釉料产生多余结晶。本发明钙长石含量较高,能够增加釉的粘度,使烧制后的釉层的乳浊感高雅怡人;添加的白云母能够使釉层表面成型银色玉质感,使瓷器光泽柔和,又不透水和气。
本发明的素坯与釉层之间的中间层,高岭土与氧化锌反应形成釉添加物,同时,高岭土使结晶成长机制被压抑,而形成大又细小之结晶;并使烧成温度范围增大。
本发明中的釉料采用球磨机湿法粉碎到所需要的细度:300~325目。粉碎不足时,会因粒度不均而难于使用,或因缺乏遮盖力而使烧成后成斑点状。反之,粉碎过度,细如尘埃,则不能充分熔合于釉中而造成滚釉。
在素坯表面施加0.8~2mm的釉料的方法为:将釉料置于球磨机中,并向球磨机中加入釉料总重量150~200%的湿磨液进行研磨24~45h,制得细度为300~325目的料浆,静置20~24h,调整料浆的含水量,使料浆的含水量保持在40~55%;然后将素坯浸入釉料的料浆中,使素坯表面附着的釉料的厚度为0.8~2mm。
本发明中,当釉层的膨胀系数大于素坯的膨胀系数时,在坯釉冷却过程中,釉层的收缩大于坯体的收缩,坯体受到釉层的压缩应力;而釉却受到张应力,当张应力超过了釉层的抗张强度时,就出现导致釉层断裂的网状裂纹。膨胀系数相差愈大,龟裂程度就愈大。
实施例1
一种玉质冰裂纹釉瓷器的制备方法,包括以下步骤:
(1)、用石英、长石、滑石、磷酸钠、碳酸钡、草木灰、高岭土和锂辉石作为素坯的原料,各原料加入量的重量份数依次为:石英8份、长石8份、滑石1份、磷酸钠45份、碳酸钡6份、草木灰5份、高岭土30份、锂辉石6.5份;制备素坯的方法为:将素坯的原料粉碎后,按照所述原料的重量份进行混合后球磨至料浆过300目筛,料浆静置分层后,调节料浆中的含水量为45%,备用;将料浆注入预先制好的模具中,待坯体成型后,晾干并修整,并在800℃下烧制4h,随炉自然冷却,即制得素坯;
(2)、在素坯表面施加1.2mm的釉料,制得坯体;其中,釉料中各原料加入量的重量份依次为:钙长石75份、碳酸钡15份、氧化锆0.5份、硅灰石5份、氧化硼15份、氧化钕25份和钛英石5份;
(3)、将步骤(2)制得的坯体至于炉内进行预烧,预烧的工艺为:在炉内温度为室温的情况下,在3.5h内均匀加热至炉内温度升温至550℃,使坯体的含水量低于0.5%;然后在炉内氧化气氛下,在4.2h内均匀加热至炉内温度升温至870℃,再在1h内均匀加热至炉内温度升温至980℃,保温95min;
(4)、然后在炉内还原气氛下,在5h内均匀加热至炉内温度升温至1200℃,保温2h:再在1.5h内均匀加热至炉内温度升温至1272℃,保温100min后,停火,自然冷却至室温,即制得玉质冰裂纹釉瓷器。
实施例2
一种玉质冰裂纹釉瓷器的制备方法,包括以下步骤:
(1)、用石英、长石、滑石、磷酸钠、碳酸钡、草木灰、高岭土和锂辉石作为素坯的原料,各原料加入量的重量份数依次为:石英6份、长石10份、滑石1.5份、磷酸钠50份、碳酸钡5.2份、草木灰3.5份、高岭土22份、锂辉石8份;制备素坯的方法为:将素坯的原料粉碎后,按照所述原料的重量份进行混合后球磨至料浆过300目筛,料浆静置分层后,调节料浆中的含水量为48%,备用;将料浆注入预先制好的模具中,待坯体成型后,晾干并修整,并在750℃下烧制6h,随炉自然冷却,即制得素坯;
(2)、在素坯表面施加0.8mm的釉料,制得坯体;其中,釉料中各原料加入量的重量份依次为:钙长石70份、碳酸钡17份、氧化锌0.5份、硅灰石7份、氧化硼10份、氧化钕30份、白云母0.5份和钛英石7份;
(3)、将步骤(2)制得的坯体至于炉内进行预烧,预烧的工艺为:在炉内温度为室温的情况下,在2.5h内均匀加热至炉内温度升温至500℃,使坯体的含水量低于0.5%;然后在炉内氧化气氛下,在4.0h内均匀加热至炉内温度升温至880℃,再在0.8h内均匀加热至炉内温度升温至950℃,保温90min;
(4)、然后在炉内还原气氛下,在3.5h内均匀加热至炉内温度升温至1200℃,保温3h:再在1.2h内均匀加热至炉内温度升温至1275℃,保温60min后,停火,自然冷却至室温,即制得玉质冰裂纹釉瓷器。
实施例3
一种玉质冰裂纹釉瓷器的制备方法,包括以下步骤:
(1)、用石英、长石、滑石、磷酸钠、碳酸钡、草木灰、高岭土和锂辉石作为素坯的原料,各原料加入量的重量份数依次为:石英7份、长石9份、滑石2份、磷酸钠40份、碳酸钡5份、草木灰3份、高岭土25份、锂辉石7份;制备素坯的方法为:将素坯的原料粉碎后,按照所述原料的重量份进行混合后球磨至料浆过300目筛,料浆静置分层后,调节料浆中的含水量为50%,备用;将料浆注入预先制好的模具中,待坯体成型后,晾干并修整,并在780℃下烧制5h,随炉自然冷却,即制得素坯;
(2)、在素坯表面施加1.0mm的釉料,制得坯体;其中,釉料中各原料加入量的重量份依次为:钙长石80份、碳酸钡20份、氧化锌0.2份、氧化锆0.3份、硅灰石10份、氧化硼13份、氧化钕20份、白云母1份和钛英石10份;
(3)、将步骤(2)制得的坯体至于炉内进行预烧,预烧的工艺为:在炉内温度为室温的情况下,在3.0h内均匀加热至炉内温度升温至520℃,使坯体的含水量低于0.5%;然后在炉内氧化气氛下,在3h内均匀加热至炉内温度升温至850℃,再在0.9h内均匀加热至炉内温度升温至960℃,保温80min;
(4)、然后在炉内还原气氛下,在4.0h内均匀加热至炉内温度升温至1200℃,保温2h:再在1.5h内均匀加热至炉内温度升温至1280℃,保温90min后,停火,自然冷却至室温,即制得玉质冰裂纹釉瓷器。
实施例4
一种玉质冰裂纹釉瓷器的制备方法,包括以下步骤:
(1)、用石英、长石、滑石、磷酸钠、碳酸钡、草木灰、高岭土和锂辉石作为素坯的原料,各原料加入量的重量份数依次为:石英6.5份、长石7份、滑石1.2份、磷酸钠47份、碳酸钡5.5份、草木灰4份、高岭土26份、锂辉石6份;制备素坯的方法为:将素坯的原料粉碎后,按照所述原料的重量份进行混合后球磨至料浆过300目筛,料浆静置分层后,调节料浆中的含水量为55%,备用;将料浆注入预先制好的模具中,待坯体成型后,晾干并修整,并在760℃下烧制5.5h,随炉自然冷却,即制得素坯;
(2)、在素坯表面施加2mm的釉料,制得坯体;其中,釉料中各原料加入量的重量份依次为:钙长石78份、碳酸钡16份、硅灰石6.5份、氧化硼12份、氧化钕28份、白云母0.3份和钛英石6.5份;
(3)、将步骤(2)制得的坯体至于炉内进行预烧,预烧的工艺为:在炉内温度为室温的情况下,在2.6h内均匀加热至炉内温度升温至545℃,使坯体的含水量低于0.5%;然后在炉内氧化气氛下,在4.5h内均匀加热至炉内温度升温至900℃,再在0.9h内均匀加热至炉内温度升温至970℃,保温100min;
(4)、然后在炉内还原气氛下,在4.5h内均匀加热至炉内温度升温至1200℃,保温2.5h:再在1h内均匀加热至炉内温度升温至1270℃,保温100min后,停火,自然冷却至室温,即制得玉质冰裂纹釉瓷器。

Claims (3)

1.一种玉质冰裂纹釉瓷器的制备方法,其特征在于,包括以下步骤:
(1)、制作瓷器的素坯,在素坯表面施加0.8~2mm的釉料,制得坯体;其中,釉料中各原料加入量的重量份依次为:钙长石70~80份、碳酸钡15~20份、氧化锌0~0.5份、氧化锆0~0.5份、硅灰石5~10份、氧化硼10~15份、氧化钕20~30份、白云母0~1份和钛英石5~10份;
(2)、将步骤(1)制得的坯体至于炉内进行预烧,然后在炉内氧化气氛下,在3~4.5h内均匀加热至炉内温度升温至850~900℃,再在0.8~1h内均匀加热至炉内温度升温至950~980℃,保温80~100min;
(3)、然后在炉内还原气氛下,在3.5~5h内均匀加热至炉内温度升温至1200℃,保温2~3h:再在1~1.5h内均匀加热至炉内温度升温至1270~1280℃,保温60~100min后,停火,自然冷却至室温,即制得玉质冰裂纹釉瓷器。
2.根据权利要求1所述的一种玉质冰裂纹釉瓷器的制备方法,其特征在于:步骤(1)采用石英、长石、滑石、磷酸钠、碳酸钡、草木灰、高岭土和锂辉石作为素坯的原料,各原料加入量的重量份数依次为:石英6~8份、长石8~10份、滑石1~2份、磷酸钠40~50份、碳酸钡5~6份、草木灰3~5份、高岭土22~30份、锂辉石6~8份;制备素坯的方法为:将素坯的原料粉碎后,按照所述原料的重量份进行混合后球磨至料浆过300目筛,料浆静置分层后,调节料浆中的含水量为45~55%,备用;将料浆注入预先制好的模具中,待坯体成型后,晾干并修整,并在750~800℃下烧制4~6h,随炉自然冷却,即制得素坯。
3.根据权利要求1所述的一种玉质冰裂纹釉瓷器的制备方法,其特征在于:步骤(2)预烧的工艺为:在炉内温度为室温的情况下,在2.5~3.5h内均匀加热至炉内温度升温至500~550℃,使坯体的含水量低于0.5%。
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CN110330310A (zh) * 2019-05-24 2019-10-15 福建省泉州龙鹏集团有限公司 一种高强度裂纹日用瓷的制备方法
CN110330310B (zh) * 2019-05-24 2021-10-19 福建省泉州龙鹏集团有限公司 一种高强度裂纹日用瓷的制备方法
CN110862230A (zh) * 2019-11-27 2020-03-06 蒙娜丽莎集团股份有限公司 冰裂纹晶核剂干粒、冰裂纹晶花透光陶瓷砖及其制备方法
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CN114804831A (zh) * 2022-04-24 2022-07-29 福建省德化县晖德陶瓷有限公司 一种低温裂纹釉陶瓷制品及其制作方法

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